Timeline of the Boko Haram insurgency

• February 21 – May 23 – 2000 Kaduna riots – between 1,000 and 5,000 people are killed in sectarian rioting between Christians and Muslims in Kaduna following the introduction of Sharia law into that state.

• September 7–17 – 2001 Jos riots – nearly 1,000 people are killed following sectarian rioting between Christians and Muslims in Jos, Plateau State.

• November 20–23 – Miss World riots – around 250 are killed during rioting by Islamists across northern Nigeria as a response to an article deemed blasphemous.
• Mohammed Yusuf founds the organization that will become Boko Haram.[1]

• February 4 – Yelwa massacre – 78 Christians are massacred in Yelwa, Kebbi State.
• May 2 – Yelwa massacre – roughly 630 Muslims are massacred in Yelwa as a reprisal attack from February.

• November 28–29 – 2008 Jos riots – 381 people are killed in sectarian rioting between Christians and Muslims in Jos.

• January 17 – March 7 – 2010 Jos riots – around 992 people are killed in sectarian rioting between Christians and Muslims in Jos.

• July 26–29 – 2009 Boko Haram uprising – nearly 1,000 people are killed in clashes between Boko Haram militants and Nigerian soldiers in four locations in the north of the country – Bauchi in Bauchi State, Maiduguri in Borno State, Potiskum in Yobe State and Wudil in Kano State – beginning the Boko Haram insurgency in Nigeria.
• July 30 – Mohammed Yusuf, spiritual leader of Boko Haram, is summarily executed by men of the Nigerian Police after he had been handed over to them by Nigerian soldiers a day before following the recent uprising. Abubakar Shekau takes control of the movement.

• September 7 – Bauchi prison break – 5 people are killed and 721 inmates are freed from prison in Bauchi by suspected Boko Haram gunmen.
• December 24 – 2010 Jos and Maiduguri attacks - 80 people were killed in a series of bombings in the city of Jos.[2]
• December 29 – Boko Haram killed three police officers and two civilians in Maiduguri.[2]
• December 31 – December 2010 Abuja attack – a bomb attack outside a barracks in Abuja kills four civilians.

• May 29 – May 2011 northern Nigeria bombings- 15 people are killed in Abuja and Bauchi after bombs explode in several towns in northern Nigeria during Goodluck Jonathan's swearing in as the new president.
• June 16 – 2011 Abuja police headquarters bombing – at least two people, the perpetrator and a traffic policeman, are killed in a failed bombing of Abuja's police headquarters. It is Nigeria's first suicide bombing.
• June 20 – Boko Haram attacked a bank in Kankara killing seven people.[2]
• July 3 – Boko Haram attacked in Maiduguri killed 10 people.[2]
• July 9 – Government troops killed 11 Boko Haram terrorists in Maiduguri.[2]
• August 19 – Boko Haram attack in Maiduguri killed three police and one civilian.[2]
• August 25 – Boko Haram attacked banks and police stations in Gombi killing 12 people.[2]
• August 26 – 2011 Abuja United Nations bombing – 21 people are killed in a bombing attack on a United Nations compound in Abuja.
• November 4 – 2011 Damaturu attacks – between 100 and 150 people are killed in a series of coordinated assaults in northern Nigeria.
• December 15 – Boko Haram attacked a Military school near Kano killing four officers.[2]
• December 17 – Boko Haram battled with the police in Kano killing three police and four militants.[2]
• December 22–23 – December 2011 Nigeria clashes – 68 people, of whom are 50 militants, at least 7 soldiers, and 11 civilians, are killed in clashes between Boko Haram militants and Nigerian soldiers in Maiduguri and Damaturu.
• December 25 – December 2011 Nigeria bombings – 41 people are killed by Boko Haram bomb attacks and shootings on churches.

During 2012, 792 people were killed as a result of the Boko Haram insurgency.[3]

• January 5–6 – January 2012 Northern Nigeria attacks – around 37 Christians are targeted and killed by Boko Haram militants.
• January 9 – Boko Haram killed four police officers and four civilian in Potiskum.[2]
• January 20 – January 2012 Northern Nigeria attacks, 183 people, of whom at least 150 are civilians and 32 are police officers, are killed in Kano State by Boko Haram gunmen.
• January 28 – The Nigerian military killed 11 Boko Haram terrorists in Maiduguri.[2]

• February 8 – Boko Haram suicide bomber damaged The military headquarters in Kaduna, but resulted in to casulties.[2]
• February 20 – Eight Boko Haram terrorist were killed by the military in Maiduguri.[2]
• February 27 – Boko Haram attacked a police station and a bank in the town of Jama’are killing three police.[2]

• April 8 – April 2012 Kaduna bombings – 38 people are killed following a bombing at a church in Kaduna.
• April 29 – Boko Haram killed 20 people in churches across northern Nigeria.[2]
• April 30 – Boko Haram attacked a police convoy in Jalingo killing 11 people.[2]

• June 3 – Boko Haram killed nine people in a suicide bombing of a church in Bauchi state.[2]
• June 5–6 – Soldiers killed 16 Boko Haram terrorists in Maiduguri.[2]
• June 8 – Boko Haram killed five people in a suicide bombing of a police headquarters in Maiduguri.[2]
• June 17 – June 2012 Kano church bombings – around 40 Christians are killed by Boko Haram at churches in Kano.
• June 17 – June 2012 Kaduna church bombings – 19 people are killed following bomb attacks against three churches in Kaduna.
• June 17 – Boko Haram killed 150 people across Plateau state.[2]

• July 13 – Boko haram killed five People in a suicide bombing of mosque a in Maiduguri.[2]

• August 5 – Boko haram killed six soldiers and two civilian in a suicide bombing of a convoy in Damaturu.[2]
• August 7 – Deeper Life Church shooting – 19 people are killed when Boko Haram gunmen raid a church in Kogi State.
• August 8 – Two Nigerian soldiers and one civilian are killed in a mosque in an apparent reprisal attack for yesterday's massacre.[4]
• August 12 – A battle between Boko Haram and the government in Maiduguri killed 20 terrorists and one government soldier.[2]

• September 7 – Soldiers killed seven Boko Haram Terrorists in Maiduguri.[2]
• September 24 – Soldiers killed 35 Boko Haram Terrorists in Adamawa and Yobe states.[2]

• October 1–2 – Federal Polytechnic, Mubi attack – at least 25 people were killed at the Federal Polytechnic, Mubi, Adamawa State.
• October 7 – Soldiers killed 30 Boko Haram Terrorists in Damaturu.[2]

• November 9 – Boko Haram killed three police men in an attack on their police station near Damaturu.[2]
• November 25 – 11 people were killed in a Boko Haram suicide bombing on a military barracks in Jaji.[2]
• November 26 – Boko Haram attacked a police station in Abuja killing two police officers.[2]

• December 1–2 – Boko Haram attacked the village of Chibok killing 10 and killed five police in Gamboru Ngala.[2]
• December 24 – Boko Haram killed six people at a church in the village of Peri.[2]
• December 25 – December 2012 shootings in Northern Nigeria – 27 Christians are killed in Maiduguri and Potiskum by suspected Boko Haram militants.
• December 28 – Another 15 Christians are killed in the village of Musari by unknown gunmen.[5]

• 2013 fatalities were at least 1,000–1,007:

• January 1 – Nigerian Army raid kills 13 militants.[6]
• January 2 – Boko Haram attacked a police station in the town of Song.[2]
• January 4 – Ogun prison break, 15 inmates are freed in a prison break in Ogun State. Boko Haram is not suspected to be involved in the attack.
• January 21–22 – Boko Haram killed 23 civilians in Damboa.[2]

• February 1 – Soldiers battled with Boko Haram in Borno state killing 17 terrorists and one soldier.[2]
• February 8 – Attack on polio vaccinators kills 9 women.[7]

• March 3–20 Boko Haram terrorists were killed in a government operation in the village of Monguno.[2]
• March 18 – 2013 Kano bus bombing- between 22 and 65 people are killed in Kano by a car bombing.[8]
• March 31 – The Government battled with Boko Haram in Kano state resulting in the deaths of 14 terrorists and one soldier.[2]

• April 16 – 2013 Baga massacre – 187 people are killed in Baga in Borno State. It is unclear whether the Nigerian military or Boko Haram is responsible for the massacre.[9]
• April 19–20 – An unknown number of people were killed in a battle between Boko Haram and the government in the town of Baga.[2]

• May 7 – Boko Haram attacked military barracks, a prison, and a police station in the town of Bama. The attack killed 22 police, 14 prison guards, Two soldiers, four civilians, and 13 terrorists. In total this attack killed 55 people.[2]
• May 14 – 53 people were killed by Boko Haram in Benue state. The government also began an offensive operations in Borno, Yobe, and Adamawa states on the 14th.[2]

• June – 9 children are killed in Maiduguri and 13 students and teachers are killed in Damaturu by Boko Haram.[10]
• June 30 – Ondo prison break – 2 people are killed and 121 inmates escape following a prison break in Ondo State. Claims that Boko Haram took part in the attack are dispelled.

• July 6 – Yobe State school shooting – more than 42 are killed by Boko Haram gunmen in a Yobe State school. Boko Haram also attacked a police station and a bank in the town of Karim Lamido killing three police officers.[10][2]
• July 27 – 20 people were killed by Boko Haram in the town of Baga.[2]
• July 29 – 12 people were killed by Boko Haram in Kano.[2]

• August 4–5 – Boko Haram attacked military base in the town of Malam Fatori and a police station in the town of Bama. The attack left 32 terrorists, Two soldiers, and one police officer dead.[2]
• August 11 – Konduga mosque shooting – 44 people are killed and 26 others injured in a mass shooting by Boko Haram in a mosque in Konduga, Borno State.
• August 15 – Boko Haram killed 11 people in the town of Damboa.[2]
• August 19 – Boko Haram killed 44 people in the village of Demba.[2]
• August 30 – Boko Haram killed 24 pro-government militiamen near the town of Monguno.[2]

• September 4–5 – Boko Haram killed 15 people in the town of Gajiram and five people in the village of Bulabilin Ngaura.[2]
• September 6 – A government operation in Borno state killind 50 Terrorits.[2]
• September 8 – There was a battle between a pro-government militia and Boko Haram in the town of Benisheik resulting in an unknown amount of casualties.[2]
• September 12 – Ambush by Boko Haram leaves 40 soldiers dead.[11]
• September 12–18 – An offensive by Nigerian Army leaves 150 Islamists and 16 soldiers dead.[11]
• September 17 – Boko Haram killed 143 on the road between Maiduguri and Damaturu.[2]
• September 19 – Benisheik massacre – 161 are killed in attacks in Borno State blamed on Boko Haram.[12]
• September 19 – Boko Haram killed 16 on the road between Maiduguri and Damboa.[2]
• September 20 – An Abuja shootout leaves 7[13]-9[14] killed.
• September 29 – Gujba college massacre – more than 50 students are killed in Yobe State by Boko Haram gunmen.[10]

• October 5 – The Nigerian military and Boko haram battled in the city of Damboa killing 20 people.[2]
• October 10 – An attack at Damboa leaves at least 20 killed (15 suspected militants and 5 civilians).[15]
• October 10 – An attack in the town of Logumani killed 19.[2]
• October – Government forces raid rebel camps, killing around 101 Boko Haram fighters.[16]
• October 24 – Nigeria troops killed 74 Boko Haram terrorists in the villages of Galangi and Lawanti.[2]
• October 29 – Boko Haram raids Damaturu. At least 128 people are killed (95 militants, 23 soldiers, 8 policemen, and 2 civilians).[17]
• October 31 – Boko Haram killed 27 people in the village of Gulumba.[2]

• November 2 – Boko Haram killed 13 people in the village of village of T-Junction.[2]
• November 2 – Boko Haram killed 30 people in a wedding convoy near the town of Bama.[2]
• November 9 – Clashes between Boko Haram and the Nigeria military killed five terrorists and two Nigerian soldiers.[2]
• November 13 – The USA designated Boko Haram as a "foreign terrorist organizations."[2]
• November 23 – 12 were killed in the village of Sandiya after a Boko Haram attack.[2]
• November 28 – 50 Boko Haram terrorist were killed by government troops around Gwoza hills.[2]

• December 2 – Boko Haram attacked several military bases in Maiduguri killed several people.[2]
• December 20 – Boko Haram attacked a military barracks in the town of Bama killing 20 soldiers.[2]
• December 23 – A battle between Boko Haram and the Nigerian military near the border with Cameroon killed 50 terrorists, 15 Nigerian soldiers, and five civilians.[2]
• December 28 – Nigerian troops killed 56 Boko Haram terrorists in Alafa forest.[2]
• December 29 – Eight people were killed by Boko Haram in the village of Tashan Alade.[2]

• January 14– 35 people are killed in a bombing by Boko Haram militants in Maiduguri, Borno State.[18]
• January 26 – January 2014 Northern Nigeria attacks – 138 killed in total
• January 31 – 11 Christians killed in Chakawa by Boko Haram militants.[19]

• February 14 – Borno massacre – 121 Christian villagers killed by Boko Haram militants in Konduga, Borno State.
• February 15 – Izghe attack – 106 killed the village of Izghe, Borno State by Boko Haram gunmen.
• February 15 – 90 Christians and 9 Nigerian soldiers are killed in Gwosa by Boko Haram.[20]
• February 24 – Dozens killed as Boko Haram again raids Izghe.[21]
• February 25 – Federal Government College attack – 59 male students killed in a school massacre in Yobe State.
• February 26 – Boko Haram attacked the towns of Michika, Shuwa, and Kirchinga killing 37 civilians, Six terrorists were also killed.[2]

• March 14 – Boko Haram attacks the heavily fortified Giwa military barracks in Maiduguri, freeing comrades from a detention facility. The military then executes about 600 unarmed recaptured detainees, according to Amnesty International.[22]

• April 14 – April 2014 Abuja bombing – over 88 people killed in a twin bombing attack in Abuja.
• April 15 – Chibok schoolgirls kidnapping – 276 female students in Borno State are kidnapped by Boko Haram.

• May 1 – May 2014 Abuja bombing – 19 killed in Abuja by a car bomb.
• May 5 – 2014 Gamboru Ngala attack – at least 300 people are killed in the twin towns of Gamboru and Ngala in Borno State by Boko Haram militants.
• May 20 – 2014 Jos bombings – at least 118 villagers are killed by car bombs in the city of Jos.
• May 21 – 27 villagers are killed by Boko Haram gunmen in northeastern Nigeria.[23]
• May 27 – May 2014 Buni Yadi attack – 49 security personnel and 9 civilians are killed during a Boko Haram attack on a military base in Yobe State.
• May 30 – The third emir of Gwoza, Idrissa Timta, is assassinated during a Boko Haram ambush.

• June 1 – 2014 Mubi bombing – at least 40 people are killed by a bomb in Mubi.
• June 2 – Gwoza massacre – at least 200, mostly Christians, are killed in several villages in Borno State by Boko Haram.
• June 20–23 – June 2014 Borno State attacks – at 70 people are killed and 91 women and children kidnapped by Boko Haram militants in Borno State.
• June 23–25 – June 2014 central Nigeria attacks – around 171 people are killed in a series of attacks in the Middle Belt of Nigeria.
• June 26 – Over 100 militants are killed by the Nigerian military during a raid on two Boko Haram camps.[24]
• June 28 – 11 people are killed by a bomb in Bauchi.[25]

• July 18 – At least 18 are killed by a Boko Haram attack in Damboa, leaving the town almost destroyed.[26]
• July 22 – 51 people are killed by Boko Haram in Chibok.[27]

• September 12 – Battle of Konduga
• September 19 – Around 30 people are killed by Boko Haram militants at a busy market in Mainok, Borno State.[28]

• October 10 – Lagos prison break – one inmate is killed following a failed attack to free inmates in a Lagos prison. Boko Haram is not suspected to be involved in the attack.
• October 31 – At least 4 people are killed, 32 injured and 13 vehicles destroyed by an explosion at a bus station in Gombe.[29]

• November 2 – Kogi prison break – 99 inmates in Kogi State are freed by suspected Boko Haram rebels.
• November 3–10 – 2014 Yobe State attacks – a double suicide bombing in Yobe State kills 15 Shiites on the 3rd and 46 students on the 10th.
• November 25 – Over 45 people are killed by two suicide bombers in Maiduguri, Borno State.[30]
• November 27 – Around 50 people are killed in Damasak by Boko Haram militants.[31]
• November 28 – 2014 Kano bombing – at least 120 Muslim followers of the Emir of Kano, Muhammad Sanusi II, are killed during a suicide bombing and gun attack by Boko Haram. The 4 gunmen are subsequently killed by an angry mob.
• November 30 – Ekiti prison break – 274 inmates escape a prison in Ekiti. Claims that Boko Haram perpetrated the attack are refuted.

• December 1 – at least 5 people are killed by two female suicide bombers who detonated explosions at a crowded market place in Maiduguri, Borno State.[32]
• December 6 – Minna prison break, 270 prisoners are freed from a prison in Minna. Boko Haram is not suspected to be involved in the attack.
• December 10 – At least 4 people are killed and 7 injured by female suicide bombers near a market in Kano.[33]
• December 11–30 people are killed and houses are destroyed by Boko Haram militants in Gajiganna, Borno State.[34]
• December 13 – 2014 Gumsuri kidnappings, between 32 and 35 are killed and between 172 and 185 are kidnapped by Boko Haram in Borno State.
• December 22 – 2014 Gombe bus station bombing, at least 27 people are killed at a bus station by a bomb in Gombe State.
• December 28–29 – December 2014 Cameroon clashes, 85 civilians, 94 militants, and 2 Cameroonian soldiers are killed following a failed Boko Haram offensive into Cameroon's Far North Region.

• January 1 – Cameroon bus attack – Boko Haram militants attack a bus in Waza, Cameroon, killing eleven people and injuring six.[35]
• January 3–7 – 2015 Baga massacre – Boko Haram militants raze the entire town of Baga in north-east Nigeria. Bodies lay strewn on Baga's streets with as many as 2,000 people having been killed. Boko Haram now controls 70% of Borno State, which is the worst-affected by the insurgency.
• January 3 – Fleeing villagers from a remote part of the Borno State report that Boko Haram had three days prior kidnapped around 40 boys and young men.[36]
• January 4 – The Chadian military launched an offensive that resulted in the deaths of 200 terrorists and nine Chadian personnel.[2]
• January 5 – News emerges that two days prior hundreds of Boko Haram militants had overrun several towns in northeast Nigeria and captured the military base in Baga.[37]
• January 9 – Refugees flee Nigeria's Borno State following the Boko Haram massacre in the town of Baga. 7,300 flee to neighbouring Chad while over 1,000 are trapped on the island of Kangala in Lake Chad. Nigeria's army vows to recapture the town, while Niger and Chad withdraw their forces from a transnational force tasked with combating militants.[38]
• January 10 – A female suicide bomber, believed to be around 10 years old, kills herself and 19 others, possibly against her will, at a market in the northeastern city of Maiduguri, Nigeria.[39]
• January 11 – More female suicide bombers, this time two, and again each believed to be around 10 years old, kill themselves and three others at a market in the northeastern city of Potiskum, Nigeria.[40]
• January 12 – January 2015 Kolofata raid – Boko Haram militants launch a failed raid on Kolofata in Cameroon. The Cameroonian military claims the army lost only one officer while the Islamic group lost between 143 and 300 rebels.
• January 16 – The Military of Chad enters Cameroon to assist in fighting against Boko Haram insurgents.[41]
• January 17 – Following the January 16 Chad authorities decision to send troops to Nigeria and Cameroon to fight Boko Haram militants, the Russian ambassador to the country pledges to supply Cameroon with more modern weapons to combat the Islamist insurgents.[42]
• January 18 – Boko Haram militants kidnap 80 people and kill three others from villages in north Cameroon.[43]
• January 20 – Boko Haram leader Abubakar Shekau claims responsibility for the attack on the town of Baga, Nigeria in which an unknown number of civilians were killed.[44]
• January 24 – 15 people are killed as Boko Haram gunmen attempt to burn down the village of Kambari near Maidaguri.[45]
• January 25 – Boko Haram rebels launch a large offensive against Nigerian forces in Maiduguri, the capital of Borno State, leading to the deaths of at least 8 civilians, up to 53 militants, and an unknown number of soldiers.[46][47] Although the attack fails, the rebels manage to capture the nearby strategic town of Monguno. The status of the 1,400 soldiers stationed in Monguno is unknown. As a result of these attacks, Boko Haram now controls four out of five roads leading into the major city, prompting fears that it will be taken as well.[48]
• January 28 – Boko Haram fighters killed 40 people while on a rampage in Adamawa State.[49]
• January 29 – The Nigerian military, in collaboration with Chadian soldiers, captures the border town of Michika from Boko Haram rebels.[50]
• January 31 – The African Union pledges to send up to 7,500 international soldiers to aid Nigeria's fight against Boko Haram. Chadian forces claim to have killed 120 Boko Haram fighters while losing only 3 soldiers of their own during fighting in the north of Cameroon.[51]

• February 1 – Boko Haram again attacks the capital city of Borno State, Maiduguri. This time, the city is attacked from four out of the five sides.[52][53] The attack is unsuccessful, but many civilians inside the city panic.[54] Also, a suspected Boko Haram suicide bomber kills himself and eight others at the residence of a politician in Potiskum.[55] Another suicide bomber kills five people outside a mosque in Gombe.[56]
• February 2 – A female suicide bomber attacks minutes after the President of Nigeria leaves an election rally in the city of Gombe resulting in at least one death and eighteen people injured.[57]
• February 4 – Boko Haram militants reportedly raid the Cameroonian town of Fotokol in Cameroon's Far North Region with scores of people killed.[58] Also on February 4, the Chad Army claims to have killed 200 militants and lost nine soldiers while capturing the border town of Gamboru Ngala.[59][60]
• February 6 – 2015 Niger raid – Boko Haram forces launch raids on the towns of Bosso and Diffa, both in Niger, marking the first time that the group has attacked the country. The Chadian military assists the Nigerien Armed Forces in repelling the attack. 5 Nigeriens are killed while the government claims 109 Boko Haram militants are killed as well.
• February 7 – Nigeria postpones its general election for six weeks to allow its armed forces to control parts of the country currently controlled by Boko Haram.[61]
• February 9 – Boko Haram launch a raid on a prison in the town of Diffa in Niger. Authorities repel the attack.[62]
• February 12 – The West African Allied Forces, led by Nigeria and supported by Cameroon, Chad, and Niger, invade the Sambisa Forest in Borno State, a stronghold of Boko Haram, killing scores of the insurgents.[63] Elsewhere, the town of Mbuta, 15 miles northeast of Maiduguri, is raided by Boko Haram, resulting in the deaths of 8 residents. A dozen people are also killed in a suicide blast at Biu, 100 miles southwest of Maiduguri.[64]
• February 13 – Boko Haram militants attack Chad for the first time after 30 fighters crossed Lake Chad in four motorboats and attacked the village of Ngouboua. Chad recently joined Nigeria, Niger, and Cameroon in a military coalition against Boko Haram.[65]
• February 14 – Boko Haram forces assault Gombe, the capital city of Gombe State, for the first time. The Nigerian military repels the attack, although the militants managed to overrun a checkpoint on the edge of the city before retreating.[66] The attack coincides with the beginning of a Nigerian offensive to roll back Boko Haram forces around the northeast.[67]
• February 15 – A suicide bomber kills 16 and wounds 30 in the Nigerian city of Damaturu.[68]
• February 16 – Nigeria regains the key town of Monguno from Boko Haram. The town had previously fallen to the militants on January 25.[69]
• February 18 – The Nigerian Army claims to have killed 300 militants in northeastern Nigeria. A warplane bombs a funeral ceremony in Niger killing 37 civilians.[70] The warplane remains unidentified, with the Nigerian government denying responsibility.
• February 20 – Boko Haram militants kill 34 people in attacks across Borno State, 21 from the town of Chibok.[71][72]
• February 21 – Nigerian army retakes Baga, which had fallen to Boko Haram on January 3.[73]
• February 22 – A suicide bomber kills five and wounds dozens outside a market in Potiskum.[74][75]
• February 24 – February 2015 Potiskum and Kano bombings - Two suicide bombers kill at least 27 people at bus stations in Potiskum and Kano.[76]
• February 24 – Chadian soldiers kill over 200 Boko Haram fighters in a clash near the town of Gambaru, close to Nigeria's border with Cameroon. One Chad Army soldier is killed and nine are wounded.[77]
• February 26 – At least 35 people are killed in two attacks targeting the cities of Biu and Jos.[78]
• February 28 – Two female suicide bombers kill up to four civilians near Damaturu.[79]

• March 2 – A senior military officer claims that 73 Boko Haram militants disguised as herders were killed near Kondunga town in Borno State. In addition, the Chadian military recaptures the town of Dikwa, also in Borno State.[80]
• March 7 – Five suicide bomb blasts leave 54 dead and 143 wounded in Maiduguri.[81] After the explosions, Boko Haram formally declares allegiance to Islamic State.[82]
• March 7 – Boko Haram pledged allegiance to the Islamic State in Iraq and Syria.[2]
• March 8 – Forces from Niger and Chad launch a ground and air offensive against Boko Haram Islamist militants in northeastern Nigeria.[83]
• March 9 – Chadian and Nigerien forces retake the towns of Malam Fatouri and Damasak in northeastern Nigeria.[84]
• March 13 – The Nigerian government admits to using foreign mercenaries in the fight against Boko Haram.[85]
• March 16 – Nigeria, Chad, and Niger begin a battle to liberate Damasak from Boko Haram militants.[86]
• March 17 – The Nigerian military reclaims the small city of Bama from Boko Haram.[87]
• March 18 – Battle of Damasak; Damasak massacre - Niger and Chad capture the city of Damasak following a successful battle.[88] A mass grave of 90 people is discovered in the city.[89]
• March 21 – Chadian forces establish a presence in the border town of Gamboru following recent attacks there by Boko Haram gunmen that killed 11 people.[90]
• March 27 – The town of Gwoza is recaptured by the Nigerian military.[91]
• March 28 – Voters in Nigeria go to the polls for a general election. Gunmen kill at least 15 voters including an opposition house of assembly candidate for Dukku in Gombe.[92]
• March 29 – Voting in the Nigerian general election is delayed for a second day due to delays and malfunctioning equipment. So far, 43 people have died in Boko Haram attacks.[93]

• April 5 – Boko Haram militants dressed as preachers killed at least 24 citizens of Kwafaja Village in Borno State, with some reports claiming that up to 50 were killed.[94]
• April 9 – Members of Boko Haram entered the village of Dile in Borno State, killing 20.[95]
• April 17 – While soldiers were evacuating the town of Gwoza in Borno State, militants entered the town and slit the throats of at least 12 townspeople.[96]
• April 21 – As the military led efforts to evacuate the town of Baga in northern Nigeria, militants planted mines and fired rockets at military vehicles, killing eight soldiers and one civilian.[97]
• April 24 – Last area controlled in Nigeria by Boko Haram's forces is in the Sambisa forest.[98]
• April 25 – Boko Haram retakes the town of Marte in Borno State, invading with tanks and over 2,000 troops.[99]
• April 25 – Boko Haram attacked an island in Lake Chad killing 46 Nigerian soldiers and 28 civilians.[2]

• June 12 – Several days of nighttime raids on six remote villages that left at least 37 people dead in Northeastern Nigeria.[100]
• June 16 – Twin suicide bomb attacks in N'Djamena – twin suicide bombings blamed on Boko Haram jihadists killed 24 people and wounded more than 100 in the first such attacks in Chad's capital N'Djamena. Monday's attacks, which targeted the police headquarters and a police academy, were the first in the capital.[101]
• June 17 – Chad bans burqas and tinted cars – Chad has banned people from wearing the full-face veil, following two suicide bomb attacks on Monday. They also banned vehicles with tinted windows.[102]
• June 22 – Maiduguri mosque bombing – 30 killed at crowded mosque by 2 young female suicide bombers. Boko Haram marks the start of Ramadan by targeting a mosque that they see as falling short in following 'The Prophet'. The second teen appeared to run away and blew up further away, killing only herself, eyewitnesses said.[103]

• July 1–2 – July 2015 Kukawa massacre – Boko Haram militants attacked mosques between July 1 and 2. Forty-eight men and boys were killed on the 1st at one mosque in Kukawa. Seventeen were wounded in the attack. Ninety-seven others, mostly men, were killed in numerous mosques on the 2nd, with a number of women and young girls killed in their homes. An unknown number were wounded.[104]
• July 5 – 5 July 2015 Nigeria attacks – A suicide bomber attacked a church in the Potiskum area of Nigeria's Yobe State, killing five.[105][106]
• July 6 – 5 July 2015 Nigeria attacks – Two bomb attacks in Jos left at least 44 people dead.[107]

• November 17 – November 2015 Yola bombing – A suicide bombing in Yola, Adamawa State, tore through a marketplace, killing 32 people and wounding 80 others.[108]

• 6 January – Boko Haram gunmen raided Izageki village in northern Nigeria, close to Sambisa Forest, Boko Haram's hideout and killed at least two people. The gunmen pursued fleeing civilians and another militant armed with a suicide belt blew himself near a market, killing another five people.[109]
• 13 January – A suicide bomber blew himself up inside a mosque at Kouyape, close to the Nigerian border. The blast killed twelve people and wounded another one. The attack occurred at dawn and was attributed to Boko Haram although it didn't officially claim responsibility.[110]
• 18 January – A suicide bomber attacked a mosque in the village of Nguetchewe in northern Cameroon, killing four worshippers and wounding another two. No group claimed responsibility, but Boko Haram is suspected.[111]
• 25 January – 2016 Bodo bombings – Four suicide bombers attacked a busy market in the town of Bodo, Far North Region, close to the Nigerian border. The blasts killed at least 30 people and wounded another 65. No group claimed responsibility, but Boko Haram is suspected.[112]
• 27–28 January – Weekend rampage with a total death toll of at least 65 people and twice that number injured. Affected areas were various villages in Dalori and outskirts of Maiduguri, the capital of Borno Province. Residents say the death toll was even higher, with as many as 100 dead.[113][114]
• 29 January –
  • Two suicide bombers attacked a school, housing Nigerian refugees in northern Cameroon, killing four people and wounding another twelve. No group claimed responsibility, but Boko Haram is suspected.[115]
  • A 12-year-old blew himself up in the Gombis' market. The blast killed at least 11 people. The attack occurred on 29 January in Gombi, Nigeria.[116]
• 30 January – At least 86 people are killed and hundreds others injured in an attack by Boko Haram militants on Dalori Village some 4 kilometers from Maiduguri, Nigeria[117]

[118]

• 31 January –
  • A Boko Haram terrorist blew himself up on a motorcycle in Guié, Chad.[119]
  • A Boko Haram terrorist blew himself up in Miterine, Chad.[119]

• 9 February –
  • Two Boko Haram suicide bombers attacked a Muslim funeral gathering in northern Cameroon 10 km (6 miles) east of the Nigerian border. Six civilians were killed and another thirty were wounded. It is the first known Boko Haram strike in Cameroon at a funeral gathering, although the militants have made an attack on a baptism in the past.[120]
  • Two female suicide bombers sneaked into an internally displaced persons (IDP) camp and detonated themselves in the middle of it in the northeast Nigerian town of Dikwa. The blasts killed 60 people and wounded another 78. No group claimed responsibility but Boko Haram is suspected.[121]
• 12 February – Members of Boko Haram attacked a village near Kachifa, killing eight people.[122]
• 13 February – Members of Boko Haram attacked Yakshari, killing 22 people.[122]
• 19 February – Two suicide bombers kill at least 24 people and injure 112 others at a market in northern Cameroon.[123]
• 27 February – At least 92 militants were killed in a joint operation carried out by Cameroon's army and Nigerian Army and over 850 villagers were freed in the Nigerian village of Kumshe which is close to the border with Cameroon.[124]

• 16 March – Three female suicide bombers killed 22 people and injured 18 in Umarari Village, on the outskirts of Maiduguri, Borno State.[125]
• 26 March – At least four people were killed during a Boko Haram raid in the remote village of Tumpun near Lassa in Askira/Uba Local Government Area.[126]
• 30 March – Six soldiers of the Niger Armed Forces were killed and three others wounded in southeastern Niger in an attack attributed to Boko Haram.[127]

• 5 April –
  • In an attack in Izige, Nigeria, Boko Haram killed three soldiers and two vigilante members, but were subsequently forced to retreat by the military.[128]
  • Two suicide bombers exploded their devices in a public transport vehicle that was going to a market in Diffa, Niger. At least three civilians were killed and several others injured.[129]
• 8 April – Nigerian troops killed four suspected Boko Haram suicide bombers before they could attack the restive northeastern city of Maiduguri. Three soldiers sustained injuries during the incident.[130]
• 20 April – At least seven or eight people have been killed at a refugee camp in Nigeria after two female suicide bombers blew themselves up. The bombing took place in the north-east of Nigeria near the border with Cameroon. Several people were wounded in the attack though details still remain sketchy.[131][132]
• 24 April – Boko Haram have been reported to have killed a total of 30 people during a raid in Alau village in Borno State.[133]

• 11 May – Nigerian army says troops from its 7 Division Garrison, intercepted a Boko Haram terrorist detonating a suicide bomb in Sulaimanti community, in the outskirts of Maiduguri, Borno State.[134]
• 12 May – A suicide bomber who was stopped from entering a government compound killed at least six people, including two police officers, in the northeastern Nigerian city of Maiduguri.[135]
• 29 May – In Biu, Nigeria a tricycle taxi triggered an old IED, killing 4 civilians and one soldier who died of his injuries. Two were wounded.[136]

• 4 June – At least 32 people were killed and 67 injured after hundreds of members of Boko Haram attacked the city of Bosso and area in Niger. Many places in the city were torched and shot at. There were also several deaths and injuries of the attacker's side.[137]
• 5 June – A woman was stabbed to death by two men after allegedly insulting the Prophet Muhammad in Kano, Nigeria.[138]
• 6 June – ten fisherman are cut down by Boko Haram in Darak, Cameroon
• 12 June – 4 women were killed by 14 assailants after being dragged outside of their homes in Mairari, Nigeria.[139]
• 14 June – 10 fishermen were killed by militants, and soon after 42 more were killed by Boko Haram at Lake Chad in Cameroon.[140]
• 15 June – At least 4 females were killed and several abducted after many Boko Haram militants attacked a village. Some sources say the number of those kidnapped is four. Many houses were burned down and shot at. Vigilantes followed the attackers and rescued one of the kidnapped after a gun battle. A vigilante was injured in Kau-Tuva, Nigeria.[141]
• 17 June –
  • At least 24 people were killed and at least 10 injured after Boko Haram militants attacked a funeral in Kuda, Nigeria[142]
  • 7 people were killed and 12 injured after an attack on policemen in Ghafam, Niger.[143]
• 20 June – At least 2 people were killed after several Boko Haram militants attacked Wumbi in Nigeria the second attack there by them in a week.[144]
• 25 June – At least 4 civilians were killed in another in a series off attacks by Boko Haram militants in Gouzoudoum and Kaldjiwa, Cameroon.[145]
• 26 June – The Nigerian army claimed they had rescued 5,000 people, mostly women and children, from four remote villages in north east Borno state (Zangebe, Maiwa, Algaiti and Mainar) and killed six Boko Haram fighters. A civilian JTF member was also killed. The army also claimed to have killed two more Boko Haram fighters in operations at 11 other villages.[146]
• 30 June – At least 15 people were killed and dozens injured after a suicide bombing that targeted a mosque and a video club in Djakana, Cameroon.[147]

• 4 July – Two people were injured when Nigerian troops shot and killed three female suicide bombers who were targeting internally displaced persons in northern Nigeria. The injuries came as a result of one of the suicide bomber's vest exploding.[148]
• 8 July – At least 9 people were killed and "dozens" injured after a suicide bombing attack on a Mosque in Borno. There was also a second suicide bombing at another Mosque.[149]
• 9 July – Boko Haram militants raided a town with guns and explosives, killing 7 people and damaging buildings.[150]
• 12 July – A Boko Haram attack in Borno State was repelled by the Nigerian Army resulting in the deaths of 25 militants. Two soldiers were killed during the attack.[151][152]

• 1 August – Nine Christian villagers were cut down by Muslim terrorists, who also burned three churches.
• 10 August – Boko Haram militants burned 60 houses, shot four villagers dead, and abducted one child.[153]
• 19 August – The Nigerian military claimed Abubakar Shekau (leader of Boko Haram) was fatally wounded and about 300 militants including three senior Boko Haram commanders (Abubakar Mubi, Malam Nuhu and Malam Hamman) killed in an air raid on the village of Taye in Borno State.[154][155][156]
• 20 August – Boko Haram killed 7 people with machine guns, before abducting dozens more, in the village of Kuruburu[157]
• 21 August –
  • A Boko Haram attack on a village called Kuburvwa (between Chibok and Damboa, Borno State) was reported to have left at least 11 people dead. Women were raped.[158]
  • At least 3 people killed and another 24 were injured when a suicide bombing attack a market in the city of Mora.[159]
• 27 August – A land mine planted by Islamist group Boko Haram killed four Chadian soldiers on patrol near Chad's border with Niger on Saturday,security sources said.[160]

• 4 September – Camel-riding assailants killed 5 people and wounded several more before being repelled by local militias. Houses were also burned.[161]
• 14 September – At least 30 Boko Haram militants and 5 Niger Armed Forces soldiers are killed in clashes near the village of Toumour in Niger's southeast Diffa Region.[162]
• 17 September – Chad and Nigeri soldiers killed at least 38 insurgents from terrorist group Boko Haram in Niger. 2 soldiers were also injured in the operation.[163]
• 18 September – The Nigerian army has dispelled reports that 8 people were killed in an attack by Boko Haram fighters in Borno state.[164]
• 19 September – members of Boko Harem claimed that they killed 40 Nigerian soldiers battling in Malam Fatori[165]
• 22 September – Three civilians were killed in Cameroon's Far North in Djakana when a vigilante tried to stop a suicide bomber whose explosive device detonated.[166]
• 25 September –
  • Four soldiers and civilian JTF members died in Borno towns of Miyanti and Dareljamal in Kaduna State after an ambush on the army by the insurgents.[167]
  • Boko Haram members attacked a Chad National Army position near the border with Niger. They killed four soldiers and injured six others. Seven terrorist were killed too.[168]
• 26 September –
  • The Nigerian Army lost 1 officer and 3 soldiers to a landmine and ambush by the Boko Haram on Sunday.[169]
  • The Nigerian Army has suffered fresh setbacks in the fight against terrorists and gunmen with several soldiers and support staff killed during separate incidents in Borno and Kaduna States.[170]

• 11 October – 5 persons were said to have been killed in an attack by suspected members of the Boko Haram on a village in Borno State.[171]
• 12 October – 18 people have been reported dead in an explosion which occurred in Maiduguri, Borno State.[172]
• 17 October – Boko Haram on Monday claimed it killed 20 soldiers in northeastern Nigeria.[173]
• 24 October – 2 suicide bombers killed three people in Cameroon. The first of those actions was carried out by a woman causing wounds to five people in the Far North Region. The other attack was carried out in the northern locality of Waramide and 3 people were killed.[174]
• 29 October – 2 suicide bombers killed at least eight people on Saturday in the northeastern Nigerian city of Maiduguri.[175]

• 1 November – Nine civilians were killed when a car bomb exploded near a military checkpoint in Northern Nigeria in Gubio.[176]
• 5 November – An army officer and six soldiers were killed by Boko Haram militants in a gunbattle in Borno State, Nigeria.[177]
• 8 November –
  • A gunman killed more than 30 gold miners in a remote area of northern Nigeria in Maru.[178]
  • 4 people have died and 6 others injured after 2 suicide bombers exploded an improvised explosive device in Maiduguri.[179]
  • At least five Nigerien soldiers were killed and three others injured in a terrorist attack in Banibagou, Niger.[180]
  • Two civilians were killed, three soldiers injured and 100 houses were set on fire when Boko Haram fighters raided a village in Far North Region, in Cameroon.[181]
• 11 November – Two persons were killed today in an early morning bomb blast in the Umulari area of Maiduguri.[182]
• 12 November – 240 Boko Haram fighters surrender in south-west Chad.[183]
• 16 November – One other soldier died and eight others were injured in the Boko Haram ambush that led to the death of B.U. Umar, a lieutenant colonel.[184]
• 18 November – Boko Haram suicide bombers caused the death of six persons, injuring many more in multiple bomb blasts.[185]
• 22 November – Six soldiers were killed in an attack on a military base, while the surrounding houses were burned. On the other hand, a woman with explosives tried to enter an army post next to the Kolofata camp on Monday, but was shot down.[186]
• 23 November – At least two persons were killed in a suicide bomb attack in Maiduguri.[187]
• 24 November – Two young female suicide bombers attacked a town in Cameroon's far north region early on Thursday.One of the bombs exploded in Mora, killing the girl and wounding at least four people.

Locals killed the second bomber before her device detonated.[188]

• 28 November – Soldiers killed at least 30 insurgents from terrorist group Boko Haram.[189]

• 9 December – Madagali suicide bombings – Officials say 2 explosions in Madagali a town Nigeria have killed 57 and injured 177
• 11 December – 3 people were killed in two suicide bombing attacks in Maiduguri.[190]
• 13 December – Boko Haram militants attacked a military base in Borno state village of Kamuya leaving scores dead.[191]
• 17 December – A member of the civilian Joint Task Force (JTF) was injured during operations in Sambisa Forest against Boko Haram.[192]
• 23 December – President Muhammadu Buhari has said that The Nigerian army has driven Boko Haram militants from the last camp in their Sambisa forest stronghold and that the terrorists are on the run.[193]
• 25 December – A suicide bombing attack left at least 2 people dead and injured 5 others in Mora, Cameroon.[194]
• 26 December – 2 suicide bombers struck in Maiduguri.Only one of the attackers was said to have died, as the other was reportedly captured before striking.[195]
• 28 December – 31 Boko Haram fighters surrender in southern Niger.[196]

• 4 January – Three girl suicide bombers were killed while attempting to detonate their vests at market in Madagali, Adamawa. Local officials blamed Boko Haram for the attempted attack.[197]
• 7 January – Boko Haram attacked a Nigerian Army base in Buni Yadi, Yobe, killing at least five soldiers. Fifteen Boko Haram militants were also killed after the army launched retaliatory strikes, a military source said.[198]
• 7-8 January – Boko Haram clashed with government troops resulting in the deaths of five government soldiers and 15 terrorists.[2]
• 10 January – Two female bombers had killed three persons, alongside themselves, when they went to the residences in the Kalari area, after disguising as visitors.[199]
• 13 January – Three Nigerian soldiers were killed and 27 others injured as troops fought off an attack on their position by Boko Haram militants in Kangarwa village, Borno. Ten Boko Haram militants were also killed in the attack. Another four suicide bombers killed at least nine people Madagali town, including themselves.[200]
• 14 January –
  • Two soldiers were killed in Borno in a roadside bombing.[201]
  • 3 soldiers were killed by Boko Haram. 10 attackers were also killed in Borno.[202][203][204][205]
  • At least 17 people were killed by Boko Haram militants in Gnam-Gnam, Cameroon.[206][207]
• 16 January – Two teenage suicide bombers exploded at Nigeria's University of Maiduguri, killing 3 people, including a professor.[208][209]
• 17 January – Rann bombing – the Air Force mistakenly bombed an internally displaced persons camp in Rann, Borno killing 115 people and injuring between 100 and 200.
• 21 January – Boko Haram killed two soldiers and wounded seven others in an attack on a military base in southeast Niger.[210]
• 23 January – Boko Haram invaded a village, killed eight people and abducted an unspecified number of women and children in Borno.[211]
• 25 January –
  • A suicide bomb attack Borno killed three and wounded two others.[212]
  • Boko Haram killed four people in multiple suicide bombing attacks in Maiduguri.[213]
• 29 January – Boko Haram attacked a convoy of motorists along a recently secured highway, in Borno, killing at least seven people and injuring many others.[214]
• 30 January –
  • Fifteen people were killed by Boko Haram militants in Maiduguri.[215]
  • A man was killed and three others injured in a Boko Haram attack in Fotokol, Far North Region, Cameroon.[216]
• 31 January – A suicide bomber stormed the Dalori quarters mosque, in Maiduguri during morning prayers, killing one of their members.[217]

• 2 February – A suspected Boko Haram attack along Cameroon's border with Nigeria killed a U.N. independent contractor and four others.[218]
• 7 February –
  • Two attempted suicide attack were foiled. The two attackers were arrested.[219]
  • A security personnel and a civilian were killed in a Boko Haram attack.[220]
• 11 February –
  • 7 soldiers were killed and 19 injured in Boko Haram ambush in Borno State.[221]
  • Boko Haram invaded a village in Borno State and set ablaze dozens of residential houses and a man suspected to were trapped in the attack.[222]
• 13 February – Boko Haram invaded Mifa community in Chibok Local Government Area of Borno State, killing an Islamic scholar and breaking the hands of a boy.[223]
• 17 February – Two civilians were killed by a suicide bombing. Other 8 attackers, were killed by the police.[224]

• 13 March – Three Nigerian men were executed by Boko Haram militants. The three men were accused of being Nigerian military spies.[225]
• 18 March – Six people were killed in a suicide bombing in Maiduguri.[2]
• 30 March – Boko Haram Islamists have abducted 22 girls and women in two separate raids in north-east Nigeria.[226]

• 2 April – The Nigerian military launched an offensive against Boko Haram.[2]

• 5 May –
  • Nine Chadian soldiers were killed in a Boko Haram attack on an army post in the Lake Chad region. Some 40 Boko Haram militants were also killed as the army responded to the attack on the Kaiga post, sources said.[227]
  • Five people are dead in northeast Nigeria in Maiduguri in an attack by two female suicide bombers.[228]
• 13 May – One person was killed and another injured by suicide bombers at the University of Maiduguri in northeastern Nigeria.[229]
• 15 May – Nine members of the insurgent group arrived on motorcycles in Amarwa, a suburb of Maiduguri, and killed 11 farmers in their fields with machetes before escaping.[230]
• 16 May – Three female suicide bombers have attacked a herding community in northeast Nigeria, killing two people and injuring seven others.[231]
• 19 May – Three suicide bombers on Friday detonated explosives inside a university campus in Nigeria's northeastern state. The incident took place in Maiduguri city of Borno state.[232]
• 20 May – At least 7 people are dead and more than 40 injured from gunshots in separate attacks by Boko haram militant group rampaging within recently liberated Borno communities.[233]

• 2 June – 11 people are dead after two suicide bombers attacked a camp for those displaced by Boko Haram extremist violence in the region.[234]
• 8 June – At least fourteen persons were killed and 24 were injured as Boko Haram suicide bombers staged multiple attacks targeting mosques where Muslim worshippers were praying. The attack occurred while soldiers were trying to repel another group of Boko Haram fighters, who were trying to invade the city.[235]
• 9 June –
  • Two teenagers were killed, all boys, and three others injured when a bomb concealed in a polythene bag exploded.[236]
  • A soldier was killed when a female suicide bomber detonated her explosive vest in a military base.[237]
• 10 June – Ten members of the Nigerian jihadist group raided the village of Hambagba, near Gwoza, on the Cameroon border, kidnapping six people and killing four others.[238]
• 14 June – Boko Haram raided the villages of Komdi and Tuyan, near Chibok, kidnapping six people and killing ten others.[239]
• 16 June – Two civilians were killed in an attack by a Boko Haram suicide bomber in the Far North Region.[240]
• 18 June – At least 12 people have died and 11 others have been wounded in attacks by five suicide women in the Nigerian state of Borno, in the northeast of the country.[241]
• 20 June – Suspected Boko Haram militants killed two people and wounded six others in an ambush on a police convoy in northeast Nigeria's Borno state.[242]
• 22 June – A double suicide attack killed six civilians on Wednesday in Cameroon's restive Far North.[243]
• 26 June – Suicide bombers killed nine people and wounded 13 others in multiple blasts in northeast Nigeria's Maiduguri.[244]
• 29 June – Suicide bombers killed two people and wounded ten others in two blasts in a refugee camp near the city of Diffa, in Niger.[245]
• 30 June – A civilian was killed when two Boko Haram suicide bombers blew themselves up in the city of Kerawa, in Niger.[246]

• 1 July – A civilian was killed when four Boko Haram suicide bombers blew themselves up in the city of Mora, in Cameroon.[247]
• 3 July –
  • Boko Haram Islamist militants killed nine people and abducted dozens more in southern Niger.[248]
  • A suicide bomber exploded his bomb in the middle of a group of people, killing four in Homaka, a locality in the Mora subdivision of the Far North region.[249]
• 11 July –
  • Boko Haram have publicly executed eight villagers in northeast Nigeria who opposed the enforcement of its hardline form of Islam.[250]
  • Four Boko Haram suicide bombers killed 19 people and injured 23 in the northeast Nigerian city of Maiduguri.[251]
• 17 July – Three Boko Haram female suicide bombers killed 8 people and injured 15 in the city of Maiduguri, in Borno State.
• 23 July – At least eight people are dead after female suicide bombers attacked two displaced persons camps in Maiduguri.[252]
• 26 July –
  • Two gendarmes were killed and several others injured during a Boko Haram attack in the Far North Region near the Nigerian border.[253]
  • Suspected Boko Haram militants ambushed an exploration team working for the Nigerian National Petroleum Corporation, killing more than fifty people.[254]
• 28 July – One civilian and four Boko Haram terrorists have been killed in a bomb attack in Meme.[255]
• 29 July – 14 people were killed and 15 others were injured when two suicide bombers blew up themselves in Dikwa, Nigeria.[256]

• 4 August – Three suicide bombers detonated explosives at the Simari area of Maiduguri, the Borno state capital, killing themselves and wounding two members of the civilian joint task force.[257]
• 6 August – A suicide bomber killed at least seven people in a small town in northern Cameroon near the Nigerian border.[258]
• 7 August – At least 31 fishermen were killed by Boko Haram jihadists in two separate attacks on islands in Lake Chad in northeastern Nigeria.[259]
• 13 August –
  • Boko Haram gunmen have killed four people and torched homes in a nighttime raid on a village in restive northeastern Nigeria.[260]
  • Two tractor drivers were killed by Boko Haram insurgents in Jere Local Government Area of Borno.[261]
• 15 August – A woman bomber blew herself up and killed 27 others at a market in the village of Konduga near Maiduguri.[262]
• 20 August – Two persons were confirmed dead while three others seriously injured following an ambush by suspected Boko Haram terrorists along Damaturu, Biu road.[263]
• 23 August –
  • A least four people died and eight others were injured when two terrorists attacked Maiduguri.[264]
  • Boko Haram extremists killed at least 27 people by shooting them and slitting their throats as they attacked several villages in northern Nigeria's Borno state.[265]
• 25 August – Suspected Boko Haram militants sprayed a village in remote Cameroon with automatic fire, killing 15 people and kidnapping eight others in an overnight raid near the Nigerian border.[266]
• 30 August – A person was killed, two others were injured and nine were kidnapped in coordinated attacks carried out by Boko Haram militants.[267]

• 3 September – Boko Haram insurgents attacked an IDP camp in Borno State, killing eleven people and injuring three persons while also kidnaping four before fleeing. The attackers used swords and sharp knives to carry out the acts.[268]
• 5 September – Boko Haram members killed four farmers in a drive-by shooting in Borno state in Nigeria's volatile northeast.[269]
• 6–7 September – Boko Haram jihadists killed eight people in a series of raids on farming communities in northeast Nigeria.[270]
• 8 September –
  • Two female suicide bombers died in Maiduguri while eight other commuters close to the explosions received various degrees of injuries.[271]
  • At least seven people were killed when Boko Haram jihadists attacked a camp for people displaced by the conflict in northeast Nigeria.[272]
• 13 September – A young woman blew herself up in Cameroon's far north, killing four people and injuring another.[273]
• 17 September – A village chief imam and four others were slaughtered by suspected Boko Haram members in Borno State.[274]
• 18 September – At least 15 people have been killed and 43 others injured in a suicide attack on Mashimari village in Borno state.[275]
• 26 September – A female suicide bomber killed five people when she blew herself up in a mosque in northeast Nigeria. Three other worshippers were injured in the attack.[276]
• 27 September – Two Cameroonian soldiers were killed when a convoy of civilian vehicles hit landmines in northeast Nigeria.[277]

• 22 October – A suicide bomber kills 13 people and injures five others in the northeast Nigerian city of Maiduguri. According to the police, 13 more civilians were injured in separate attacks. [278]
• 30 October –
  • 11 civilians were killed by Boko Haram terrorists in Kolofata, Cameroon.[279]
  • Five civilians were killed and several other were Boko Haram terrorist blew himself up in a mosque in Maiduguri, Nigeria.[280]
  • Four people, including a mother and her two children, were killed and nine others were injured when a vehicle hit a mine planted by Boko Haram terrorists in Banki, Nigeria.[281]

• 1 November – Six people were killed and two wounded by a Boko Haram suicide attack on a mosque in the village of Zamga.[282]
• 15 November – At least ten people have been killed and dozens injured in a suicide attack in a popular market in Maiduguri.[283][284]
• 20 November – At least six farmers were beheaded in Borno State, Nigeria by Boko Haram terrorists.[285]
• 21 November – 2017 Mubi bombing – 50 people were killed in a suicide attack in the north of Nigeria caused by Boko Haram militants.[286][287]

• 2 December – Fifteen persons were killed and 53 others injured in twin suicide bomb attacks in a market in Borno State.[288]
• 11 December – Two civilians and the bomber were killed when suicide bombing attacked a mosque after morning prayers in far northern Cameroon.[289]
• 13 December – Five people were killed by Boko Haram militants in Damboa, Nigeria.[290]
• 22–23 December – Three people were killed in two attacks in northern Cameroon by Boko Haram militants.[291]
• 25 December – Boko Haram killed four people near Maiduguri.[2]
• 28 December – A suicide bombing caused by a Boko Haram militant in Borno State killed at least six people and injured 13 others.[292]
• 30 December – Boko Haram fighters opened fire on a group of loggers in a remote village in northeast Nigeria, killing 25 people. The gunmen also burned three vehicles laden with firewood heading to Maiduguri.[293][294]
• 31 December – At least two people were killed and 30 more were injured in an attack by Boko Haram militants in northern Cameroon.[295]

• 1 January – At least three people have been confirmed killed in a blast in Nigeria's northeastern town of Madagali.[296]
• 3 January – 14 civilians were killed when a suspected Boko Haram militant blew himself up at a mosque in Gamboru, Nigeria. Only the muezzin has survived.[297]
• 8 January –
  • At least one civilian was killed in an attack by members of the terror group Boko Haram in Cameroon's Far North region.[298]
  • Gunmen on motorbikes opened fire on a group of loggers collecting firewood at Kaje village, near the Borno state capital, Maiduguri. 20 People were killed in the attack and 15 others are missing and presumed kidnapped by the attackers.[299]
• 10 January – At least three people were killed in an attack in Cameroon's Far North region.[300]
• 11 January –
  • Two suicide bombers, alleged members of the Islamist group Boko Haram, detonated their bombs in the Ouro-Kessoum district of Amchide in Cameroon, injuring two others.[301]
  • Four people were killed and two others kidnapped in separate overnight attacks in the far north of Cameroon. Another one was wounded.[302]
• 15 January –
  • Four people were killed in Mayo-Tsanaga, a region of the Far North of Cameroon, during an attack by Boko Haram. The assailants left after burning down dozens of huts and a church.[303]
  • Six people were killed by gunmen who also abducted five girls who joined the loggers to collect firewood from the Jinene woods.[304]
  • Five people, including two suspected fighters of the terror group Boko Haram, were killed in an attack near Nigeria's northeastern town of Madagali. Two others were critically injured.[305][304]
• 16 January – At least two civilians were killed and a dozen others injured in a suicide attack near a mosque in the Far North Region.[306]
• 17 January –
  • Two suspected Boko Haram suicide bombers killed 12 people and injured 65 others in an attack in the northeastern Nigerian city of Maiduguri.[307][308]
  • Suspected Boko Haram fighters killed at least seven soldiers in an attack on a military post in Niger's southeastern Diffa Region. Ten others were injured in the attack.[309][310]
• 18 January – Boko Haram jihadists have killed five people in an attack on a village in Adamawa state, northeast Nigeria.[311]
• 26 January – At least three people were killed when Boko Haram attacked the Hyambula village in northeast Adamawa state. Five others were injured in the attack.[312]
• 29 January – At least two soldiers were killed overnight while fighting off an attack by suspected Boko Haram jihadists in southeast Niger.[313]
• 30 January – Boko Haram jihadists killed at least five loggers in northeast Nigeria. Four others were injured in the attack.[314]
• 31 January – Four people were killed and 44 others sustained injuries in multiple suicide bomb attacks at a Konduga community and the Dalori Internally Displaced Persons camp.[315][316]

• 3 February – At least two civilians were killed in an attack by the terror group Boko Haram in Kolofata of Cameroon's Far North region.[317]
• 4 February –
  • Boko Haram fighters stormed a village in northeast Nigeria and killed three people. Seven others were injured in the attack.[318][319]
  • One person has been reported dead after Boko Haram terrorists attacked Kala village, opposite the Internally Displaced Persons (IDPs) camp in Dalori, Borno State. The attackers also injured another man during the attack and burnt down some houses.[320]
  • Six people were killed and two others injured in the Cameroonian town of Hitawa (Far North), following an attack by Boko Haram.[321][322]
• 16 February – At least 21 persons were killed and 70 civilians injured as three bombers struck Konduga local government area of Borno State.[323]
• 19 February – Dapchi schoolgirls kidnapping – About 110 girls were abducted by Boko Haram from their school in Dapchi, Nigeria.[324]
• 20 February – At least six people were killed and five others injured in a Boko Haram attack in the department of Mayo Tsanaga in Cameroon's Far North region.[325]
• 21 February – Two soldiers, including a captain, were killed in a Boko Haram ambush in the Lake Chad region of Chad.[326]
• 22 February – Boko Haram terrorists killed six people in different attacks in Cameroon's Far North region.[327]
• 25 February – At least four people were killed in two suicide bombings by Boko Haram in the localities of Bourvare and Goumouldi, in the north of Cameroon. Half a dozen others were injured in the attacks.[328]
• 27 February – Two soldiers were killed and two others wounded when a suicide bomber drove into their patrol vehicle in the Lake Chad region of Nigeria.[329]

• 1 March –
  • Boko Haram threatens to harm Leah Sharibu, Presidency Says; Condemns Killing Of Red Cross staff Boko Haram insurgents abducted three people from Madagali Local Government Area of Adamawa state.[330]
  • Boko Haram militants killed at least 11 people including three aid workers in an attack on a military barracks in the town of Rann in Borno state. Another three aid workers were wounded and one more kidnapped.[331][332]
• 2 March – A female suicide bomber blew up herself at a mosque in the Fulatari area of Buni Yadi, Gujba local government area of Yobe state, killing seven persons and injuring 28 others.[333]
• 5 March –
  • Insurgents attacked two farmers on their farm and slit their throats in the village of Gudda in Mafa Local Government Area of Borno state.[334]
  • A team of loggers were attacked by Boko Haram while on their way to the bush to collect firewood in the state of Borno. Three loggers were killed in the attack, while the rest fled to Dikwa and left behind a pickup van.[335]
  • A suicide bomber on a bicycle killed three people when he detonated his explosives on the outskirts of the northeast Nigerian city of Maiduguri.[336]
• 6 March –
  • Four loggers were killed when they stepped on a landmine left by Boko Haram near Dikwa, 90 km east of the Borno state capital, Maiduguri.[337]
  • Three people were killed in an attack in Gamboru on the border with Cameroon.[338]
• 30 March – At least five people, including four suicide bombers, were killed and 13 others injured when terrorists attacked Muna Zawuya in the Mafa Local Government Area of Borno state.[339]

• 1 April –
  • Terrorists attacked a village in the town of Limani near the border with Nigeria in northern Cameroon, killing one person and burning several huts.[340]
  • Boko Haram militants attacked a military post in the commune of Waza in northern Cameroon, injuring a soldier. Two suicide bombers who blew themselves up died.[341]
  • Boko Haram fighters attacked a military base and two surrounding villages near the Nigerian city of Maiduguri in the Jere Local Government Area, killing at least 20 people and wounding 84.[342][343]
• 2 April – Five Cameroonian soldiers were killed and three others wounded in an attack on a military post in Sagmé in the commune of Fotokol in the Far North region of Cameroon.[344]
• 22 April – Boko Haram jihadists shot dead 18 forest workers who had been collecting firewood in Borno State, near the town of Gamboru, on the border with Cameroon. In another incident, a vehicle carrying civilians travelling in a nearby army convoy hit a mine placed by insurgents, killing three people and wounding eleven others near the village of Wumbi.[345]
• 26 April – Six people, including three civilians, a member of the Civilian Joint Task Force and two suicide bombers, were killed and nine others injured in an attack by Boko Haram insurgents in the Nigerian city of Maiduguri. Later another suicide bomber attacked an armored van of the Federal Special Anti-Robbery Squad in the same area, injuring two police officers.[346][347]
• 27 April – Boko Haram terrorists attacked a village near Amchide in the Mayo-Sava department in Cameroon' s Far North region, killing a man and stealing sheep.[348]
• 29 April – At least three soldiers were killed in an attack by Boko Haram militants in the Diffa region in southeast Niger.[349]

• 1 May – 2018 Mubi suicide bombings – At least 86 people were killed in two suicide attacks at a mosque and a market in Mubi, a town in the state of Adamawa in northeastern Nigeria. 58 others were injured in the bombings.[350][351]
• 2 May – Boko Haram militants attacked the village of Auno in the Konduga local government area. No lives were lost, but a vehicle was burned by the terrorists.[352]
• 3 May –
  • At least four people were killed and nine others injured when four suicide bombers attacked Mainari Shuwa and neighbouring Mainari Kanuri in the Konduga local government area of Borno state.[353]
  • At least twenty huts were set on fire and a man was killed in the Mayo-Sava department in the Far North region of Cameroon.[354]
• 5 May – At least 12 people were killed, while 20 others were injured when two suicide bombers detonated their explosives at a mosque in Mabanda in the Far North region of Cameroon.[355]
• 6 May – Six people, including four government officials and a soldier, were killed in an attack by Boko Haram jihadists on a Chadian army checkpoint on an island in Lake Chad.[356]
• 17 May – At least four people were killed and 15 others injured in a suicide bombing at an open-air mosque for refugees in Dikwa in the northeastern Nigerian state of Borno.[357]
• 27 May – At least three people were killed and seven others injured when two suicide bombers attacked a community in the Konduga Local government area in the state of Borno in Nigeria.[358]
• 28 May – At least one person was killed and an unconfirmed number of cattle were stolen in an attack on herders by Boko Haram terrorists in the Askira/Uba Local Government Area in the southern part of Borno state.[359]
• 31 May – Five soldiers were killed in an ambush by Boko Haram terrorists in the Gwoza Local Government Area of the Nigerian state of Borno.[360]

• 4 June – Three suicide bombers, two women and a man, blew themselves up in Diffa in southeast Niger. The first explosion took place near a mosque, the second near a Koran school and the third not far from a business centre. Nine people were killed and 38 others injured in the attacks.[361][362]
• 8 June – At least 10 people were killed in attacks in villages in the department of Diamaré in the far north of Cameroon. Four Boko Haram terrorists were also killed.[363][364]
• 9 June – A male suicide bomber detonated a bomb attached to his body, killing only himself in Maiduguri in the Nigerian state of Borno.[365]
• 11 June – At least two people were killed and four others injured when a Boko Haram suicide bomber detonated his explosives in the city of Maiduguri in the Nigerian state of Borno.[366]
• 13 June – A trader was killed by Boko Haram terrorists armed with machetes and firearms in the village of Alhadjiri in the department of Mayo-Sava in Cameroon's Far North region.[367]
• 16 June –
  • Two suicide bombers were killed when one of them prematurely activated her explosive device in the town of Limani in the Far North region of Cameroon. A young boy was also killed in the explosion.[368]
  • Two people were killed by terrorists in the village of Tchika in the commune of Hile-Alifa in northern Cameroon.[369]
  • At least 43 people were killed and 84 others injured when six female suicide bombers detonated their explosives in the Damboa local government area in the Nigerian state of Borno.[370][371]
• 18 June – Boko Haram militants killed nine soldiers and wounded two others when they attacked the town of Gajiram, headquarters of the local government of Nganzai in northeastern Nigeria.[372]
• 20 June – Fifteen people were injured when two suicide bombers attacked military barracks in the city of Maiduguri in northeastern Nigeria.[373]
• 22–23 June – Boko Haram terrorists attacked the locality of Guid-Zeleved in the Far North region of Cameroon, slaughtering three people.[374]
• 26 June –
  • Three civilians were killed and a woman abducted in an incursion led by a group of armed persons in Oulfo on the border between Cameroon and Nigeria in the Far North region of Cameroon.[375]
  • At least seven people were killed while dozens sustained injuries when Boko Haram militants attacked them at a village in the local government area of Damboa in the Nigerian state of Borno.[376]
• 30 June – Boko Haram jihadists killed four people and injured four others during an attack on a camp for displaced civilians in Banki in the local government area of Bama in Borno State, Nigeria. Two terrorists were also killed in the fight and the others fled. Later, two soldiers were wounded when their patrol vehicle hit a landmine planted by the fleeing jihadists in the village of Freetown, nine kilometers away.[377]
• 20 July – Insurgents swarmed 81 Division Task Force Brigade in Jilli, near Geidam, Yobe State. Three Nigerian Army officers and 28 soldiers were confirmed killed.[378]
• 8 September – ISWAP captured the town of Gudumbali.[2]
• 8 October – Boko Haram attack leaves 15 soldiers dead in attacks near the Niger Border and around the Lake Chad[379]
• 31 October – Boko Haram killed 15 people in the villages of Kofa, Dalori, and Bulabrin.[2]
• 22 November – Insurgents overran a Nigerian army battalion at Metele Village in Guzamala Local government in Borno State killing 70 soldiers[380]

• 17 June – 2019 Konduga bombings – Three suicide bombers detonated near a group of people watching a football game, killing 30 and wounding over 40.[381]
• 2 July – Boko Haram attacked the village of Inates in Tillabéri Region, Niger, using a suicide vest and guns. The attack killed 18 soldiers and another 4 soldiers were captured.[382]
• 4 July – Boko Haram attacked soldiers near the village of Damboa, killing five. Another 14 soldiers and two civilians were also wounded.[383]
• 18 July – ISWAP ambushed a military vehicle on a road near Jakana, killing all six soldiers on board.[384]
• 19 July – Six aid workers were kidnapped and a driver killed when militants stopped their vehicle in northeast Nigeria.[385]
• 27 July – 2019 Nganzai funeral attack – Militants opened fire on a group of people walking home from a funeral in Nganzai District, Borno State. At least 65 people were killed in the attack, many of them while attempting to chase the militants away. A local government chairmen said the attack happened because a civilian defense group had killed 11 of the militants during an ambush last week.[386]
• 5 August – ISWAP insurgents raided the Borno state town of Monguno, with the resulting clash with troops leaving three civilians dead.[387]
• 6 August – Two female suicide bombers struck a crowd of women collecting firewood in Mafa, Borno State, killing three civilians and wounding eight more.[387]
• 14 August – In Lac Province, western Chad, a female suicide bomber activated her explosives at the home of a traditional chieftain, killing four guards, a soldier, and a civilian and wounding five others. Boko Haram or ISWAP militants are suspected of carrying out the attack.[388]
• 15 August – Boko Haram clashed with the Nigerian military near Maiduguri killing three soldiers.[2]
• 18 August – Militants killed four soldiers when they fired on a military patrol in a village in east Borno.[389]
• 23 August – Twelve villagers were killed in Gueskerou, southeastern Niger, after a raid by Boko Haram militants.[390]
• 26 August – Militants killed four civilians and abducted 12 more in a village in Borno State.[391]
• 27 August – ISWAP insurgents killed 11 construction workers and wounded several more in Wajirko village, Borno State.[392]
• 30 August – ISWAP insurgents killed eight soldiers in the Gasarwa area near Lake Chad in Borno State.[393]
• 31 August – Boko Haram militants stormed the Borno State village of Balumri, killing four and kidnapping six. Four of those kidnapped were later beheaded.[394]
• 9 September – ISWAP militants ambushed a Nigerian military convoy as it traveled to reinforce coalition troops outside the ISWAP-held town of Gudumbali. The number of casualties was "huge," but no number or range was specified.[395]
• 13 September – Insurgents killed six Cameroonian soldiers and wounded nine more in an attack on a military base in Fotokol, northern Cameroon.[396]
• 25 September – ISWAP executed one of the six aid workers the group had captured and held hostage in July.[397]
• 26 September – An ISWAP ambush on a military convoy outside the town of Gubio left at least seven Nigerian soldiers dead.[398]
• 27 September – Nigerian and Chadian troops were attacked by ISWAP in Gajiram, leaving a policeman, a hunter, and six civilians dead. A militant pickup truck was destroyed in the battle, killing several of the extremists on board.[399]
• 28 September – Boko Haram fighters killed a soldier and destroyed a Nigerian military vehicle in Banki, near Cameroon.[399] One other person was killed and several more were injured when Boko Haram militants stormed two villages near Kolofata, Cameroon.[400]
• 2 December – ISWAP insurgents killed four Chadian soldiers in an attack on their positions along the shores of Lake Chad.[401]
• 10 December – Battle of Inates
• 12 December – ISWAP fighters killed 14 militiamen and a police officer in northeast Nigeria.[402]
• 13 December – ISWAP executed four of the six aid workers it has held hostage since capturing them in July. A fifth had been executed in September, while only one Action Against Hunger staff member remains alive.[402]
• 14 December – Boko Haram militants killed 19 Fulani cattle herders near Ngala, along the border with Cameroon, after the herders repelled an attack on a village earlier, leaving one militant dead.[403]
• 17 December – At least 14 people were killed, five were injured, and 13 more were missing, after Boko Haram militants attacked the Lake Chad fishing village of Kaiga, Chad.[401]
• 22 December – ISWAP militants killed six people and abducted five more, including two aid workers, when they set up a fake checkpoint on a highway near Maiduguri, Borno State, Nigeria.[404]
• 24 December – Boko Haram militants killed seven people in a raid near Chibok, a Christian town in Borno State, on Christmas Eve. They also abducted a teenage girl.[405]
• 26 December – ISWAP militants executed 11 Christians, who were kidnapped from Maiduguri and Damaturu, in a video released one day after Christmas. The militants said the execution was in response to the death of Islamic State leader Abu Bakr al-Baghdadi.[406]

• 3 January – Local sources reported that 50 people may have been killed in an attack by Boko Haram on an island in Lake Chad in late December.[407]
• 6 January – 2020 Gamboru bombing – At least 32 people were killed and over 35 injured when an IED explode on a crowded bridge in Gamboru, Borno State, Nigeria.[408]
• 7 January – Twenty soldiers were killed and more than 1,000 people displaced when a town in Borno State, Nigeria, was attacked by ISWAP militants.[409]
• 16 January – Three aid workers and other civilians who were kidnapped on December 22 in northeast Nigeria were released by an unspecified militant group.[410]
• 19 January – A suspected female Boko Haram suicide bomber detonated her explosives in Kaiga-Kindjiria, western Chad, killing nine civilians. It was also reported that insurgents killed four villagers and kidnapped four women around the same area earlier in the month, while 1,200 Chadian troops returned to Chad from Nigeria in order to defend Chadian territory.[411]
• 7 February – Boko Haram militants killed six civilians in Bosso District, Diffa Region, Niger.[412]
• 9 February – Auno attack – At least 30 civilians were killed and many more abducted by militants in Auno, Borno State, Nigeria. Four soldiers were killed and seven more wounded in an attack on the same village last month.[413]
• 15 March – Boko Haram attacked the a military post in the town of Toumour, Niger. The attack was unsuccessful resulting in the deaths of 50 Boko Haram fighter and the injury of one Nigerien soldier. The Nigerien military also destroyed multiple vehicles belonging to Boko Haram.[414]
• 4 March – Four police officers and two militiamen were killed by Boko Haram militants during a raid on an army base in Damboa, Borno State, Nigeria.[415]
• 17 March – The Niger Armed Forces said they killed 50 members of Boko Haram when the latter group attacked a military outpost in Toumour, Diffa Region.[416]
• 23 March – March 2020 Chad and Nigeria massacres – at least 50 Nigerian soldiers were killed by Boko Haram militants in an ambush near a village in Yobe State, Nigeria. Other sources stated at many as 75 soldiers were killed.[417]
• 24 March – March 2020 Chad and Nigeria massacres – At least 92 Chadian soldiers were killed and 24 army vehicles were destroyed by Boko Haram militants during a seven-hour long battle in the Boma peninsula in the Lake Chad region of Chad.[418]
• 31 March – Operation Boma's Wrath is launched.
• 5 April – Two Boko Haram suicide bombers killed seven civilians and themselves in Amchide, Far North Region, Cameroon.[419]
• 6 April – MNJTF troops attacked Boko Haram in the Lake Chad region killing 19 terrorists.[2]
• 8 April – A spokesperson for Chad's army announced that a military operation, which began on March 31 against armed militants in the Lake Chad region, killed over 1,000 fighters and left 52 Chadian soldiers dead. Niger also participated in the operation.[420]
• 9 April – President Idriss Déby of Chad said his country's troops will no longer engage in military operations abroad in order to focus on fighting militants and rebels at home. Chad is part of MNJTF, which focuses on fighting extremists in the Lake Chad region, and the G5 Sahel force, which focuses on fighting extremists in the Sahel region. Thousands of Chadian soldiers will withdraw from bases in Niger, Mali, and Nigeria by April 22.[421]
• 16 April – At least 44 suspected Boko Haram militants were fatally poisoned while imprisoned in Chad. It was not clear how or why they were poisoned.[422]
• 3 May – Militants attacked a military camp outside Niger's Diffa city, killing two soldiers and wounding three more.[423]
• 5 May – An operation launched by Nigeria has killed 134 militants in northeast Nigeria since it began on May 1.[424]
• 11 May – Niger said it neutralized about 25 militants south of Diffa, Niger, and about 50 more in Nigeria's Lake Chad region. Only two soldiers were injured in the operations.[423]
• 18 May – Twelve soldiers were killed and at least ten more wounded after Boko Haram militants attacked their outpost northeast of Diffa, Niger. Seven of the attackers were "neutralized".[425]
• 9 June – Gubio massacre – An attack by ISWAP on the herding village of Gubio in Borno State, Nigeria, left at least 81 people dead, seven people and over 1,200 cattle abducted, and the village destroyed. The attack may have been retaliation for the earlier killing of members of an armed militant group by local militiamen.[426]
• 13 June – 2020 Monguno and Nganzai massacres – ISWAP conducted two attacks in the Monguno and Nganzai areas of Nigeria's Borno State, killing at least 20 soldiers in the first location and at least 40 civilians in the second location. Hundreds of civilians were wounded and many buildings were torched in the violence, according to local sources.[427]
• 27 June – 9 soldiers and 2 militia members were killed in a Boko Haram ambush.[428]
• 28 June – Six Nigerian soldiers were killed in an attack on their positions by Boko Haram, who stole weapons in the attack.[429]
• 29 June – Boko Haram ambushed and killed nine Nigerian soldiers in the town of Damboa.[2]
• 2 July – Two civilians were killed and an aid helicopter damaged after militants raided Damasak, Borno State, Nigeria.[430]
• 7 July – An ambush conducted by ISWAP on a Nigerian military convoy at Bulabulin village, Borno State, Nigeria, killed at least 35 soldiers and left more than 18 injured and 30 missing. The government claimed at least 17 insurgents were killed in the battle.[431]
• 10 July – Boko Haram assaulted Baga and killed about 20 soldiers stationed there, and then opened fire on a military convoy near Gada Blu, killing 15 soldiers.[432]
• 13 July – Militants killed eight soldiers while attacking a military convoy near Kumulla, Borno State, Nigeria, and then killed another two soldiers during a firefight near Kolore village.[433]
• 18 July – Gunmen attacked several villages near Chibok, Borno State, Nigeria, killing three farmers.[434]
• 22 July – Five aid workers were executed by armed men who had kidnapped them last month in Borno State, Nigeria.[435]
• 30 July – three people were killed in a bombing in Maiduguri.[2]
• 2 August – Nguetchewe attack – Boko Haram militants attacked an IDP camp in Far North, Cameroon, killing 16 people and wounding at least seven more.[436]
• 9 August – Kouré shooting – ISWAP killed six French aid workers and two Nigerien civilians in Kouré, Tillabéri Region, Niger.[437]
• 1 September – At least seven people were killed and more than 14 were wounded when a suicide bomber exploded in an IDP camp in Goldavi, Far North region, Cameroon.[438]
• 20 September – Boko Haram ambushed a convoy of Nigerian troops near Damboa killing seven soldiers.[2]
• 25 September – At least 30 people, including civilians and security personnel, were killed when militants attacked the convoy of a region governor near Baga, Borno State, Nigeria.[439]
• 30 September – 10 Nigerian soldiers were killed and eight more were wounded when militants attacked their logistics convoy near Marte, Borno State, Nigeria.[439]
• 25 October – Nigerian troops killed 22 Boko Haram militants in Damboa.[440]
• 28 November – Koshebe massacre – About 110 civilians, mostly farm workers, were massacred by Boko Haram in Koshebe, Borno.[441]
• 11 December – Kankara kidnapping – 344 schoolchildren from and all males boarding school were kidnaped by Boko Haram.[442][443]
• 13 December – 28 people were killed and 100 injured in the town of Toumour in Niger, Boko Haram then burned between 800 and 1,000 homes and the central market, up to 60% of the town was destroyed.[444][445]
• 18 December – 35 people were kidnapped and one person was killed along the Maiduguri-Damaturu Highway, three vehicles were also set on fire and nine other vehicles were abandoned along the road.[446][447]
• 20 December – Five Nigerian soldiers were killed when boko haram fired a RPG at a vehicle in a convoy, two other vehicles were captured by Boko Haram in the same attacks.[447]
• 24 December – 11 Christians were killed when Boko Haram attacked a Christian village. They burned down the town church, the hospital, and 10 other houses in the town. They also looted food and other goods and kidnapped people.[448]
• 24 December – 40 Loggers were kidnapped near the town of Gamboru, so far four of the loggers have been found dead.[449]
• 27 December – 10 people were killed after Boko Haram attack on the villages of Shafa, Azare and Tashan Alade. Boko Haram burned homes, shops, churches, and a police station where two police officers were killed.[450]
• 29 December – 11 People were killed, seven pro-government hunters and four army personnel when their vehicle hit a landmine in the village of Kayamla.[451]

• 3 January, Multinational Joint Task Force carried a sweep around Kolofata, during the fighting three Boko Haram insurgents were killed and two were captured.[452] Operation TUKA TAKAIBANGO was announced by Nigerian military.[453]
• 4 January, at around 4 AM three members of a local vigilance committee were shot dead by Boko Haram in Mayo Moskota area. One civilian was killed by Boko Haram in Kolofata area the same morning.[454]
• 6 January, Boko Haram infiltrated the town of Geidam. Insurgents were sighted at the outskirts of Geidam at 1 PM. Rumor about insurgents spread trough town soon and it caused regular activities to be disrupted disrupted for an hour and a half, after nothing happened people continued with their regular activities. Boko Haram insurgents gathered at strategic locations such as Geidam market with a coordinated plan at 5:30 PM, soon after they positioned at those locations they attacked the town. The insurgents abducted the District Head, injured several civilians and stole food and medical supplies. Police of the district later found two bodies in a burnt vehicle who they believe are members of Boko Haram.[453]
• 7 January, operation TUKA TAKAIBANGO was officially launched.[453]
• 8 January – 14 people were killed when a Boko haram suicide bomber detonated their explosives in the town of Mozogo, Cameroon.[455]
• 9 January – At least 28 Boko Haram insurgents were killed during clashes with Nigerian army in Gujba, while several other insurgents escaped, one Nigerian soldier was killed and one was injured, according to the military spokesman of Nigeria.[456]
• 11 January – 13 soldiers were killed when Islamic State West Africa Province militants ambushed a convoy in the village of Gazagana, Nigeria.[457]
• 14 January – Nigerian military announced that 64 Boko Haram insurgents have been killed in multiple operations conducted on 9 and 10 January 2021.[458]
• 16 January – Islamic State West Africa Province militants attacked and destroyed a military base in the town of Marte killing 7 people. The militants also captured weapons, ammunition, and six vehicles.[459]
• 19 January – Four Nigeran soldiers were killed and eight other injured when their vehicle hit and IED.[460]