Royal Munster Fusiliers

A painting depicting the 101st Regiment of Foot (Royal Bengal Fusiliers), a predecessor regiment of the Royal Munster Fusiliers, marching to Delhi during the Indian Mutiny of 1857.

Before the regiment was reformed as part of a reorganization of the British Army in 1881, the Royal Munster Fusilier's historic background went back as far as 1652 with the formation of the Bengal European Regiment by the Honourable East India Company.[5] This regiment would eventually become the 101st Regiment of Foot (Royal Bengal Fusiliers), or the 1st Bengal European Fusiliers. The East India Company formed the 104th Regiment of Foot (Bengal Fusiliers), or 2nd Bengal European Fusiliers, from this regiment in 1765. Both regiments, which were composed exclusively of white soldiers, not Indian sepoys, played pivotal roles in the British conquest of India throughout the 18th and 19th centuries.[6]

As well as the Royal Munster Fusilier's origins as part of the East India Company, the regiment's reserve battalions also traced their lineage to the Militia of Munster (namely the South Cork Light Infantry Militia, the Kerry Militia and the Royal Limerick County Militia, which became the 3rd, 4th and 5th Battalions, respectively).[7] While both the fusilier regiments had originated and served as "European" regiments of the East India Company, they were transferred to the British Army in 1861 when the British Crown took control of the company's private army after the Indian Mutiny of 1857.[8]

The second half of the 19th Century saw the beginning of widespread reforms in the British Army which would eventually result in the formation of the Royal Munster Fusiliers. The first of these reforms saw the localisation of recruiting districts in Britain and Ireland between 1873 and 1874 under the Cardwell Reforms. Five of the historic East India Company's European infantry battalions were given Irish territorial titles under the Childers Reforms of 1881. The former Bengal Fusilier regiments were merged into a single regiment to become the 1st Battalion, Royal Munster Fusiliers and the 2nd Battalion, Royal Munster Fusiliers, while the 3rd, 4th and 5th Royal Munster Fusilier battalions were the militia units.[9][10] The Reforms linked regiments to recruiting areas – which in case of the Royal Munster Fusiliers were the counties of Clare, Cork, Kerry, and Limerick. Militarily, the whole of Ireland was administered as a separate command with Command Headquarters at Parkgate (Phoenix Park) Dublin, directly under the War Office in London.[11] The regimental depot was located at Ballymullen Barracks, Tralee, Co. Kerry.[12]

The 1st Battalion, Royal Munster Fusiliers in South Africa during the Second Boer War, 1901.

Following the outbreak of the Second Boer War in South Africa in October 1899, a number of regiments from areas containing large centres of population formed additional regular battalions. The Royal Munster Fusiliers were announced to be among those regiments set to form 3rd and 4th regular battalions in February 1900,[13] but they do not appear to have done so.[14] The 1st Royal Munster Fusiliers embarked for South Africa in 1899, and would serve there throughout the entire Second Boer War. Initially, the battalion took part in Lord Robert's advance into the Orange Free State. Following this, the battalion was attached to the 20th Brigade and fought at the Battle of Belmont. With the beginning of the war's guerrilla warfare phase, the battalion took part in numerous pacification campaigns against the Boers in Pretoria and Western Transvaal.[15] The 3rd (Militia) Battalion, Royal Munster Fusiliers, formerly the South Cork Light Infantry, was embodied in early December 1899, and 435 officers and men embarked the SS Sumatra for South Africa on 23 February 1900.[16] The 2nd Battalion, Royal Munster Fusiliers, arrived in South Africa from India in December 1901 and served during the closing stages of the campaign, garrisoning blockhouses in the northeast of the Orange River Colony.[17]

Following the end of the war in 1902 the 1st Royal Munster Fusiliers were sent to India. More than 520 officers and men left Cape Town on the SS Lake Manitoba in September 1902, arriving at Bombay the following month and were then stationed at Multan in Punjab.[18] They would later take part in actions against the tribes of the North-West Frontier in 1908. The 2nd Royal Munster Fusiliers left South Africa soon after their sister battalion, and 450 officers and men returned to Cork Harbour on the SS Orient in early November 1902.[19][20]

Prior to the First World War, the Royal Munster Fusiliers were an established strength of two regular service and three reserve battalions.[21][14] With the outbreak of war in August 1914, the need for further divisions resulted in the creation of a New Army made up of volunteers who would serve for the duration of the war. This rapid expansion of the British Army would significantly increase the size of the Royal Munster Fusiliers who between their regular, reserve and volunteer battalions would have a combined strength of 11 raised battalions throughout the war.[22]

At the outbreak of war the 1st Royal Munster Fusiliers was acting as a regular garrison in Rangoon, Burma, having being based in the Far East since they had left Fermoy in 1899 to fight in the Second Boer War.[23] The 2nd Royal Munster Fusiliers were based at Aldershot, England as part of the 1st Army Brigade of the 1st Infantry Division at the outbreak of war.[24] At the outbreak of war the Royal Munster Fusiliers three reserve battalions were all mobilised on 4 August 1914 and the regimental colours were sent to Tralee for safekeeping there until after the Armistice.[25]

Men of the 2nd Battalion, Royal Munster Fusiliers in Aldershot just prior to the outbreak of the First World War, 1914.

At the outbreak of war, the 2nd Royal Munster Fusiliers was under strength, and reservists were called up from the regimental depots at Tralee and Fermoy amid much local cheering, to join the battalion at Aldershot which brought the battalion up to a strength of 27 officers and 971 other ranks before its departure to France on 13 August 1914.[26] As part of the British Expeditionary Force, the 2nd Royal Munster Fusiliers took part in the Battle of Mons and on 27 August were given the arduous task of forming the rearguard to cover the retreat of the 1st Division in the face of the German advance, with instructions to retreat only if ordered. The Munster's made an epic stand in a renowned rearguard action during the defence of Etreux, losing 9 officers and 87 other ranks killed while holding out,[27] with most of the rest of the battalion being surrounded and taken prisoner after running out of ammunition. The Munster's had stemmed the Germans, who were five or six times their strength, for over a day, allowing their division to escape. The loss on an entire battalion so early in the war was a disaster for the regiment. When the scattered battalion reassembled on 29 August it was down to a mere 5 officers and 196 other ranks. The remnants of the 2nd Royal Munster Fusiliers were withdrawn to be recuperated before returning to battle, seeing action most notably at Langemarck, Belgium on 22 October. By 5 November, recruits from home brought its strength up to over 800 men.[28] The battalion next saw action near Zillebeke, Belgium on 12 November and helped to defend against the last great German effort in the First Battle of Ypres. From 15 November, as snows began, they drove off further attacks, with trench warfare now becoming dominant. In early December they aided in the evacuation of the Ypres Benedictine Convent, whose occupants subsequently established Kylemore Abbey in Connemara, Ireland.[29]

The battalion was moved south to the Festubert sector in France, after a 36-hour march were ordered on 22 December to fill a gap by taking two lines of trenches. There were 200 casualties in the first 10 minutes of heavy fire. Withdrawing in total exhaustion on the next day, many wounded drowned in water-filled shell holes. Throughout Christmas and New Year they were fully occupied maintaining the trenches. On 25 January, the Kaiser's birthday the Germans tried unsuccessfully to break through with terrific shellfire. There then followed three months of rebuilding and training the battalion when it numbered 28 officers and 700 other ranks in May. Only four of the officers were pre-war.[30]

The SS River Clyde holds dead of the Royal Munster Fusiliers who were killed while attempting to get ashore at Sedd el Bahr during the Gallipoli Campaign.

The 1st Royal Munster Fusiliers, who had been stationed in Burma, arrived back at Avonmouth, UK in January 1915, and were entrained for Coventry where it was assigned to the 86th Brigade of the 29th Division (United Kingdom). In March it sailed for the Dardanelles, Turkey, when it numbered 28 officers and 1,002 other ranks.[31] Turkey had joined the Central Powers's side in November 1914, the object of the landing on the Dardanelles peninsula was to open the Dardanelles Strait in the Battle of Gallipoli to enable Allied relief convoys reach Russia. Aboard the SS River Clyde, a converted collier with a capacity for over 2,000 men, they arrived on 25 April together with the 1st Battalion The Royal Dublin Fusiliers and some companies of the Royal Hampshires.[32]

The SS River Clyde ran gently ashore, its exit bows facing the beach, for what was to be the troubled British landing at Cape Helles. Small boats first carried companies of Dubliners to the beach, however four hidden Turkish machine gun posts opened fire and decimated them. Lighters to the shore were roped together and two companies of Munsters poured out on to the bow's gangway but were also hit by machine gun fire, with one survivor saying they were 'literally slaughtered like rats in a trap'.[33] Many of the Munsters jumped from the gangway in the face of the withering fire and some drowned under their heavy equipment. Those men who continued down the gangway were mown down until all the boats and lighters were filled with dead and wounded. The ship's commanding officer, Captain Edward Unwin, on being informed that they were not succeeding, replied "in British military tradition, offensives once begun are never called off". Unwin was awarded the Victoria Cross for his actions that day.[34] At daybreak the next day, just three companies of Munsters, two companies of Hampshires and one company of Dubliners had made it to the shelter of some dunes. On 26 April they took fort Sedd-el-Bahr overlooking the bay, charging and taking the village behind and held off several Turkish counterattacks. It was in this attack that the heroic actions of William Cosgrove won the regiment's first Victoria Cross. The 28 April saw a renewed attack in the Battle for Krithia village, but the survivors of the landing were withdrawn by 29 April due to heavy losses and amalgamated with the surviving Dublin Fusiliers, to form the "Dubsters" battalion of 8 officers and 770 men.[35]

The Last General Absolution of the Munsters at Rue du Bois administered
by their chaplain Father Francis Gleeson

The Turks launched a renewed attack on the night of 1 May, with one Royal Munster Fusilier saying "they crept up in the dark into our trenches bayoneting our men before we knew it had begun. Bayoneting on both sides was terrible. At dawn the Turks were mowed down, and heaps of bodies and streams of blood remaining everywhere."[36] The battalion was reduced to 4 officers and 430 men, with the Turks attempting further attacks the following days only to be driven off once again, but the combined force of Munster and Dublin Fusiliers were down to 372 men by 11 April. Both the Munsters and Dubliners received new drafts on 29 May and became separate units again. By 4 June, the 1st Royal Munster Fusiliers numbered 40 officers and 500 other ranks, but many the new recruits were young and inexperienced. The Munsters withheld a further Turkish attack on 17 June, killing over 300 Turks. The arrival of further new drafts replenished the battalion to 23 officers and other 588 ranks. The Munsters took part in the Division's assault on 28 June which secured five trench lines. This provoked a general attack by the Turkish side along the Cape Helles front on 5 July, but the Turks were repulsed after suffering heavy losses.[37]

The 1st Royal Munster Fusiliers participated in limited actions into the middle of July. A month's rest was promised on 15 July, but by 22 July the battalion were back in action, their strength around 500 of whom only 3 officers and 314 men remained from those who first landed on 25 April. The climax of the Gallipoli came with the Suvla attack on 21 August in the Battle of Scimitar Hill, the Turks inflicted severe casualties. The unsuccessful attack cost the Munsters 3 officers and 79 men that day alone.[38] There was little further action other than holding front lines from September through to November, when the weather worsened. Late in November, gales swept over the peninsula, hundreds were drowned in the flooded trenches or from exposure and frostbite. Faced with defeat, the British decided to withdraw from the peninsula and the 1st Royal Munster Fusiliers was evacuated as it arrived, on the River Clyde, sailing on 2 January 1916 for Alexandria. From there it sailed with the rest of the 29th Division and arrived in France on 22 March. 3 years of warfare still remained for the battalion on the Western Front, but the battalion had already suffered 45% of its total losses for the entire war at Gallipoli, and numbered just 24 officers and 287 men when disembarking in France.[39]

Certifying attendance at Father Gleeson's Mission, 1915.

While their sister battalion had been fighting on the shores of Gallipoli, the 2nd Royal Munster Fusiliers had continued to serve on the Western Front and faced their first major action of 1915 in the Second Battle of Ypres, during which they fought at the Battle of Neuve Chapelle. The day before the attack was to be launched on 9 May, the battalion received Absolution from their chaplain, Father Francis Gleeson,an event which would become depicted in the famous "Rue du Bois" painting by Fortunino Matania.[40] The British bombardment began at 5 a.m. and the Munsters then pressed forward with extraordinary bravery, with German fire sweeping no-mans-land. Some of the Munsters audaciously charging ahead through the German lines, briefly waving a green flag on its breastwork, then moved beyond until cut off by the British artillery bombardment that followed, which killed many men sheltering in shell craters. By 11 a.m. the 2nd Royal Munster Fusiliers was withdrawn with only 3 officers and 200 men remaining, having lost 19 officers and 370 men killed, wounded or captured. The Munsters was one of only two British battalions to reach the German lines but they had suffered the regiment's highest loss of any one day of the war, with 11 officers and 140 men killed in action. It was an unsuccessful day for the British forces overall, with casualties exceeding 11,000, the devastating losses exposing the British forces weakness in artillery.[41]

The summer was relatively quiet for the 2nd Royal Munster Fusiliers after the battalion moved to the Loos sector in June, with casualties in July and August occurring from shelling. With other forces being withdrawn to reinforce the Gallipoli Campaign, no reinforcements or recruits arrived during the summer, keeping the battalion weak as the Loos offensive began on 25 September 1915. The Munsters were held in reserve at first but they were soon tasked with holding the line and suffered over 200 casualties, leaving the battalion with around 350 soldiers all ranks, which further reduced to 250 by the time the battle died down on 13 October. John Redmond M.P., the Irish leader, visited the battalion a month later on 15 November and promised to fill the depleted 2nd Royal Munster Fusiliers with Irish recruits.[42] There followed three months of bitter winter weather in appalling trench conditions. New recruits began arriving over the winter, but in the relative inactivity, 65 men were hit by harassing random fire while 40 men went down with frostbite and trench fever in the Arctic weather before the winter had ended.[43]

An illustration depicting men of the Royal Munster Fusiliers returning victoriously from their capture of Ginchy during the Battle of the Somme.

The 1st Royal Munster Fusiliers entered the front lines in France for the first time on 23 April 1916 at the Somme sector, where they slowly built up strength to 26 officers and 476 men. On 29 May, the battalion was assigned to the 48th Brigade of the 16th (Irish) Division at Béthune and they were reinforced by members from the disbanded 9th Royal Munster Fusiliers, bringing the Battalion up to full strength. The Munsters remained in the area of the Loos salient into August with only intermittent casualties.[44] When the 16th Irish Division was ordered south of the Somme battlefield, the 1st Royal Munster Fusiliers entered the line facing the strategic town of Ginchy on 5 September, having suffered over 200 casualties by gas-shelling on the way. The Munsters took part in the ensuing attack and triumphant capture of Ginchy by the 16th Division but at a high cost for the battalion which was reduced to 5 officers and 305 other ranks.[45] A London newspaper headlined How the Irish took Ginchy – Splendid daring of the Irish troops.[46]

In May, the 2nd Royal Munster Fusiliers received many of the personnel from the disbanded 9th Royal Munster Fusiliers, bringing it up to strength for the summer campaign. The battalions' first noteworthy operation was the carefully planned Liévin raid on 25 June. It was during this action that Lieutenant Arthur Batten-Pooll would win the regiment's second Victoria Cross, although losses were heavy for the battalion with 5 officers and 60 other ranks killed or wounded.[47] The 2nd Royal Munster Fusiliers were transferred with its division down to the Somme sector in July for the opening of the Battle of the Somme, entering the lines on 14 July and capturing its objectives two days later. The battalion repulsed the German counterattack on 18 July, with an officer and 26 men killed, 127 wounded and 50 gassed. The Munsters were in reserve until 20 August, when they entered the lines once again for steady fighting but ran into heavy off-target and ineffective British artillery bombardment, killing 4 officers and 29 other ranks. A continual toll of casualties made September a costly month for the battalion. After a month's break in October, the 2 Royal Munster Fusiliers returned to the Somme for maintenance duties, then went into the mud filled front-line trenches from 27 November onwards, with a steady stream of casualties from frostbite and raids continuing to the end of December. Throughout the Somme campaign the 2RMF retained its local and Irish character.[48]

Following the end of their involvement in the Battle of the Somme, 1st Royal Munster Fusiliers was moved northwards to Ypres in Belgium and also absorbed the remnants of the 8th Royal Munster Fusiliers on 23 November to bring it up to a strength of 48 officers and 1,069 men by 1 December. The Munsters spent Christmas 1916 in the trenches, but as the New Year arrived, an official report relates "as if by mutual consent both sides ceased fire a minute or two before the close of the old year. On the stroke of midnight the pipers tuned up and gave us The Old Year out and the New Year in, A Nation Once Again ,God Save Ireland, and a few more songs of the old country, N.C.O.s and men joining lustily in the choruses".[49]

Old Royal Munster Fusiliers insignia

The Kaiser knows each Munster, by the Shamrock on his cap,
and the famous Bengal Tiger, ever ready for a scrap.
With all his big battalions, Prussian guards and grenadiers,
he feared to face the bayonets of the Munster Fusiliers.

— Verse from a song published during the Great War[50]

Following a period of rest in January 1917, the 2nd Royal Munster Fusiliers were returned the front trenches again in February at Barleux, with the thawing weather resulting in extremely muddy conditions in the trenches. In March, the first major event was the German withdrawal from the old Somme battlefield to the newly constructed Hindenburg Line. The battalion followed across the Somme, but was held up into May removing mines and booby-traps and repairing communications. The Munsters then moved to near Nieuwpoort in Flanders for an intended amphibious landing, with an impressive strength of 43 officers and 1,070 men, which was aborted following a surprise German attack on 10 July. The Munsters were then moved with their division to Dunkirk for another amphibious attempt near Zeebrugge to link with a land offensive through Passchendaele, but this was also cancelled when the land offensive did not gain enough footing.[51]

For the men of the 1st Royal Munster Fusiliers, rotating routine trench duties continued up to the middle of March with light casualties (2 officers and 20 men killed). The battalion rehearsed special training during April and May for the assault on the strategic Messines Ridge. The Flanders offensive began at 3.10am on 7 June 1917 with the detonation of nineteen huge mines previously burrowed under the German lines. This was followed by the advance of the 16th Irish Division opposite the village of Wytschaete, to the right the 36th (Ulster) Division opposite the village of Messines, the largest ever concentration of Irish soldiers on a battlefield.[52] The 1st Royal Munster Fusiliers took all its objectives on schedule despite the loss of nearly all of its supporting tanks. The subsequent battle was a complete success militarily for the British, with the two Irish divisions showing great fortitude, advancing over two miles in a few days with minimal losses, which was exceptional by Western Front standards. The battalion was then relieved, and returned to the Ypres salient front section in August. Continuous rain turned the battlefront into a sea of mud causing a multitude of casualties and failure to take specific positions, reducing the battalion to 37 officers and 701 men. The Munsters were moved with its Division back south into France where it built up to 1,089 all ranks.[53]

The 16th (Irish) Division, and with it the 1st Royal Munster Fusiliers, took up positions north of the main attack during the first Battle of Cambrai which opened on 21 November with the use of over 450 British tanks. The Munsters advanced with such speed that only one enemy machine gun post was manned in time to open fire, which was taken with one loss. Considering the success of capturing a difficult objective without tank support and taking 170 prisoners, losses were light, and followed previously unsuccessful attempts by other units during the summer. The 1st Royal Munster Fusiliers final front tour of 1917 ended on 2 December when the Division was moved south to take over a French section.[54]

By 6 November 1917, the 2nd Royal Munster Fusiliers now numbered 20 officers and 630 other ranks when it arrived at "Irish Farm" in the Ypres salient. The ground was a quagmire full of water-logged shell-holes following four months of battle. It was to be the last British effort of the Passchendaele campaign. The Munsters were to be one of two battalions leading the 1st Division's attack at 6 a.m. on 10 November. Weighed down with equipment, they waded waist deep through mud and water, initially taking all objectives within 45 minutes. Seeing the progress by the Canadians on the right, the men of the Munsters pressed on. However, the South Wales Borders advance had left a gap the Germans made use of to cut off most of the 2nd Royal Munster Fusiliers who then had to fight their way back to the British lines. A roll call took three hours later saw only 7 officers and 240 other ranks present with 12 officers and 393 other ranks having become casualties. The battalion was moved out to Brieulles for reforming for the rest of the year.[55]

Two officers of the 2nd Battalion, Royal Munster Fusiliers man a machine gun on the Western Front.

From January through to March, the 1st Royal Munster Fusiliers was involved in various engagements in snow, frost and mud. By St. Patrick's Day 1918, it became clear that the Germans were gaining the initiative and their forecast "Big Move" was awaited.[56] By the end of January 1918 the 2nd Royal Munster Fusiliers numbered 44 officers and 823 other ranks, and was then transferred to the 48th Brigade of the 16th (Irish) Division on 3 February near Peronne where it entered the lines a week later. The division was now under the command of General Hubert Gough.[57]

The British front was at its lengthiest when the German Spring Offensive opened with a devastating bombardment early on 21 March 1918, after which a fierce attack by fresh troops was launched. The 2nd Royal Munster Fusiliers suffered badly from the shelling but held the Germans up all night, before they broke through and overwhelmed the Munsters who dashed to retreat, with some making it to a high ridge trench where they were driven out and retired to Epehy by dark, fog having allowed the Germans to infiltrate easily. The next day the battalion was withdrawn to Tincourt where the depleted 16th (Irish) Division was concentrated, with the 2nd Royal Munster Fusiliers now numbering only 290 other ranks, from 629 the day before. On 22 March, the battalion crossed back over the Somme at Péronne.[58] By 25 March, the battalion had lost 27 officers and 550 men, as the rest tried to reform, holding off several attacks and near encirclements. The Munsters formed a 400-man column and attempted a night retreat, half reaching friendly positions next morning at Hamel.[59] The 1st Royal Munster Fusiliers was fortunate to be in reserve as the Germans opened the offensive with a gas-bombardment. By the next day, the battalion was heavily engaged, the enemy using a new zigzag attack strategy. The battalion retaliated but was forced to withdraw and were quickly down to 7 officers and 450 men. There was then a general withdrawal across the Somme at Peronne, by which time the battalion was reduced to just 290 men.[60]

The German offensive had decimated the 1st Royal Munster Fusiliers to a shadow of its previous strength. The 16th (Irish) Division was reduced to cadre, having suffered the heaviest losses of any British division during the March retreat. The 1st Royal Munster Fusiliers was transferred to the 57th (2nd W.Lancs) Division which had not seen action since its arrival in February 1917.[61] The 2nd Royal Munster Fusiliers was largely destroyed by the German offensive, losing 36 officers and 796 other ranks since 21 March. The battalion moved northwards to amalgamate with the equally hard hit 1st Royal Munster Fusiliers at Inghem on 14 April, with the resulting unit numbering 28 officers and 896 other ranks. The 2nd Royal Munster Fusiliers was then reduced to a training cadre of 11 officers, who left the 16th (Irish) Division to provide instruction for newly arrived American Expeditionary Force.[62]

In May, the 1st Royal Munster Fusiliers entered the lines again at Gommecourt, a quiet sector during the summer. On 27 August, the battalion again entered the line for an attack near Croisilles, taking enemy support trenches on the Hindenburg Line in half an hour with minimal losses. This was followed by the assault of 2 September when Martin Doyle won the battalion's third Victoria Cross on the Drocourt–Queant Line south of the river Scarpe, with the battalion suffering 350 casualties. The battalion was then relieved and received replacements and trained in preparation for the assault on the Cambrai to St. Quentin line. With a 3,000-yard advance on 27 September, Graincourt was captured by the Munsters. The Germans counter-attacked, recapturing many positions. The battalion remained under shellfire even behind the lines and was reduced to 7 officers and 261 men by 3 October.[63] The battalion supported the final attack of the Battle of Cambrai on 8 October, which was found to be evacuated the following day as the Germans were in disorganised retreat. The 57th Division was then sent north to Armentières, with the Munsters entering the line on 17 October, with no resistance. Lille was captured the following day and the battalion provided a guard of honour for the French President's visit to the city on 21 October. The 1st Royal Munster Fusiliers was billeted in Lille until the Armistice of 11 November 1918.[64]

The 2nd Royal Munster Fusiliers began reconstruction on 7 June 1918 when most of the 6th Royal Munster Fusiliers who had returned from Palestine were transferred to the 2nd Royal Munster Fusiliers. The battalion made its last transfer to the 150th Brigade of the 50th Division at Arras for the beginning of the Hundred Days Offensive. On 1 October, the battalion was transported to Épehy, which had been the scene of its Spring Offensive experiences back in March, and it was again ordered into the lines on 4 October, to capture Le Catelet. The Munsters largely gaining their objective, however, they had to retire after encountering heavy counterattacks and failures elsewhere on the line, losing many 6st Royal Munster Fusiliers pre-war veterans who had survived Gallipoli. The 50th Division's advance was resumed on 10 October, and the battalion was reduced to 13 officers and 411 men by 16 October.[65] The Battle of Épehy began on 18 October to drive the Germans behind the river, with the Munsters going in next day in fog surprising the Germans and taking many prisoner as well the objectives. The Munsters overran their objectives and were caught in another Division's barrage, with heavy losses experienced. They were then withdrawn and reorganised for what to be their final operation of the war, successfully taking a large area around Haute Noyelles on 4 November, the number of prisoners taken indicative of the low state of German morale. After a counter-bombardment on 7 November the battalion was withdrawn for the remaining days up until the Armistice.[66]

With the outbreak of World War I in August 1914 the immediate need for a considerable expansion of the British Army resulted in the formation of the New Army under Lord Kitchener. The war target was seventy divisions in all, the New Army to have thirty volunteer divisions separate and under Army Order 324, as additional from the Regular Army, with a planned period of service of at least three years. On 7 August a general United Kingdom-wide call for 100,000 volunteers aged 19–30 was issued. The battalions were to be distinguished by the word 'Service' after their number.[67][68]

The first new battalions were raised as units of Kitchener's new K1 Army Group, which led to the formation of the 6th and 7th (Service) Battalions, Royal Munster Fusiliers which were a part of the 30th Brigade of the 10th (Irish) Division, under the command of General Bryan Mahon. The 8th and 9th (Service) Battalions, Royal Munster Fusiliers followed as units of the 16th (Irish) Division's 47th and 48th Brigades, part of Kitchener's second new K2 Army Group. The 16th Division was placed under the command of Major General William Hickie.[69] In the course of the war heavy losses suffered by the two Regular Royal Munster Fusilier Battalions caused the new service battalions to be disbanded and absorbed in turn by the regular battalions, the last on 2 June 1918 when the 8th (Service) Battalion, Royal Munster Fusiliers was amalgamated with the 1st Battalion, Royal Munster Fusiliers.[70]

At the outbreak of war the Royal Munster Fusiliers three reserve battalions were all mobilised on 4 August 1914 and the regimental colours were sent to Tralee for safekeeping there until after the Armistice.[71] Initially planned to be used for home defence, with the 3rd Battalion, Royal Munster Fusiliers being based in Cork while both the 4th and 5th Battalions, Royal Munster Fusiliers were based in Kerry. However, mounting casualties to the regiment's regular battalion meant that replacements were increasingly drawn from the reservists as the war went on.[72]

Ceremony of laying up of the colours of the Royal Munster Fusiliers at the Tower of London, 15 February 1923.

Last reassembled in France in December before demobilisation, the 2nd Royal Munster Fusiliers numbered 25 officers and 581 other ranks. After demobilisation by February, the last cadre of 14 officers and 54 other ranks left France in June 1919 and was reabsorbed into the reformed battalion on the Isle of Wight numbering 900 men, of these 500 with war service. Their last commander wrote "Its losses amounted to 179 officers and 4,088 rank and file killed, wounded or missing. There were twenty-eight changes in the battalion's command during the war. The battalion retained its essentially Irish character to the end of the war, and was first to last composed of voluntarily enlisted soldiers. During the war 346 officers and over 8,000 O.R.s passed through its ranks".[73] The 1st Royal Munster Fusiliers remained a predominantly Irish battalion to the end of the war, composed of many Dublin Fusiliers from May 1918. At least 43 officers and 869 other ranks died in action with the battalion during the war. It was demobilised in December, reducing it to 13 officers and 89 others, before leaving France.[74]

In May 1919, after returning to England, the 1st Royal Munster Fusiliers absorbed the 3rd Royal Munster Fusiliers at Plymouth. It left for Silesia in September 1921, returning the following April to be disbanded in July 1922, ending a history going back 250 years.[75] The 2nd Royal Munster Fusiliers served in Egypt from November 1919 to May 1922, returning for demobilisation and disbandment in July 1922. Due to substantial defence cuts and the establishment of the Irish Free State in 1922 (predecessor of the Republic of Ireland), it was agreed that the six former Southern Ireland regiments would be disbanded,[4][76] including the Royal Munster Fusiliers. On 12 June, five regimental Colours were laid up in a ceremony at St George's Hall, Windsor Castle in the presence of HM King George V.[77] (The South Irish Horse had sent a Regimental engraving because the regiment chose to have its standard remain in St. Patrick's Cathedral, Dublin). The six regiments were then all disbanded on 31 July 1922.[14]

With the outbreak of the Irish Civil War, some thousands of the Irish regiment's ex-servicemen and officers contributed to expanding the Free State government's newly formed National Army. In its ranks, Royal Munster Fusiliers ex–servicemen, veterans from World War I, served at the side of IRA ex-guerrillas who only a few months earlier had fought against the British Army in the Irish War of Independence. They brought considerable combat experience with them and by May 1923 comprised 50 per cent of its 53,000 soldiers and 20 per cent of its officers.[78] The Irish National Army reached a strength of 60,000.[79]