Union of Bulgaria and Romania

Georgi Sava Rakovski, one of the earliest supporters of a Bulgarian–Romanian union

During the 19th century, the idea of federalization was on the minds of both Romanians and Bulgarians. Romanians wanted to accomplish the independence, liberation and unification of the Romanian nation. Notable supporters were Nicolae Bălcescu, Dimitrie Brătianu, Mihai Eminescu, and Aurel Popovici, who either suggested the integration of Romania into a larger Balkan state or the federalization of the Austrian or Austro-Hungarian Empire in favor of the Transylvanian Romanians. Members of the Bulgarian liberation movement had similar goals as the Romanians. They looked at allying or uniting with nearly all of their neighbors, be they Romanians, Serbs, Greeks and even Turks, to accomplish them.[17]

A Bulgarian revolutionary, Georgi Sava Rakovski, advocated for unity among the Balkans to confront and liberate themselves from the Ottoman Empire. The uncooperative nationalist attitude of the Greek and Serbian ruling elites disappointed him, and thus, he went to Bucharest in late 1863. After seeing the policies against the influence of the Greek Ecumenical Patriarchate of Constantinople[7] (such as the proclamation of independence of the Romanian Orthodox Church and the establishment of its Holy Synod)[23] and for independence from the Ottomans that were taking place in the Romanian United Principalities, he began to see the country as a favorable option for the liberation of the Bulgarians.[7] Therefore, in 1864, in the bilingual newspaper Badushtnost (Viitorulŭ in Romanian), Rakovski talked about the relations between Bulgarians and Romanians, emphasizing they had always been full of "brotherly love and union" and that cooperation between the two was necessary. He called for a Bulgarian–Romanian rapprochement "based on equality" and described the Second Bulgarian Empire as a "strong state" in which Bulgarians and Romanians lived together. It is likely Rakovski wanted a reestablishment of this empire. The newspaper set itself the goal to defend the rights of Romanians and Bulgarians against the Ottoman Empire and the Ecumenical Patriarch of Constantinople.[17]

It is unclear what Rakovski's exact plans were, but he seems to have supported a "Bulgarian-Vlach dualism" model for unifying the Bulgarians and the Romanians.[7] Dualism refers to a real union between two states, the most famous dual state being Austria-Hungary.[14] Rakovski developed good relations with the Romanian prince, Alexandru Ioan Cuza, but the latter was deposed by a so-called "monstrous coalition" of conservatives and radical liberals in February 1866. As this coup had violated the Ottoman conditions for recognizing Romania's formation, the members of this coalition were concerned about a possible Ottoman military retaliation in favor of the prince, so they began searching for allies. One option was Rakovski, but they learned later he was close to the prince, so they allied themselves with Ivan Kasabov. Being a former associate of Rakovski, Kasabov proposed Romania support a Bulgarian rebellion in the Ottoman Empire (since a Bulgarian entity did not yet exist) to divert attention from the coup in Bucharest. One document entitled the Act for Sacred Coalition between Romanians and Bulgarians was drafted for settling this. The Bulgarian Committee in Bucharest was supposed to organize this rebellion, to lead two other Bulgarian committees in Serbia and the Ottoman Empire and to support them until they had funds of their own. After the Ottoman Empire's defeat, "autonomous and independent states" that would unite as one "confederation" were to be established. However, this document was never signed, the project remained unrealized, and the Romanian liberals withdrew from the alliance after Carol I, from the German House of Hohenzollern, became prince of Romania in May 1866.[24]

Another suggestion for a union involving Bulgaria and Romania was that of the Bulgarian writer Lyuben Karavelov. He intended a union of the South Slavs and Romania, Albania and Greece. He presented this in the newspaper Nezavisimost as an "Eastern federation" composed of three cores: Serbia (including Bosnia and Montenegro), Bulgaria (with the regions of Moesia, Thrace and Macedonia) and Romania, with an Albanian entity and with Constantinople as a "free city". Greece could be included as well if it relinquished its efforts to recover the territory of former Byzantine lands. Karavelov made partition plans for the Ottoman and Austro-Hungarian territories. It would be a federation modelled after the United States and Switzerland. Another Bulgarian with a proposal was the revolutionary Vasil Levski. He wanted a "Balkan Democratic Republic" with an "equal population" made up of Bulgarians, Serbs, Montenegrins and Romanians.[18] The Bulgarian journalist and poet Hristo Botev supported a South Slavic or Balkan union, being against the proposals of a dual state with the Turks that existed at the time. Regarding Romania, Botev said that its governments "did not particularly love the Slavs" and that Romania was a "product of the Western policy, led by France, which wanted to put a barrier to Eastern Pan-Slavism".[25]

Bulgarian unification projects aimed to solve the Bulgarian church and state questions. They were encouraged by the Russian Empire, the Western powers and other movements (such as certain anti-Russian Polish emigrants).[26] Because of shared opposition to the Ottoman Empire, the Bulgarians and Romanians considered the option of unification several times between the 1860s and 1870s. Still, their overall interests and goals were different. For example, the Bulgarians aimed to obtain a state, while the Romanians already had their own; the Bulgarians belonged to the Slavic group while the Romanians identified as Latin; the Bulgarians intended to establish themselves in the Balkans while the Romanians had interests in Central Europe; and others.[25] Furthermore, the Balkan countries' conflicting territorial ambitions hampered cooperation between them, which affected the Bulgarians and their national movement, considered as having developed too late in comparison to others. For example, in the series of Serbian agreements and treaties signed between 1866 and 1868 for an alliance against the Ottomans (known as the First Balkan Alliance), it was suggested that Romania would receive eastern Bulgaria up to the Ruse–Varna line while Serbia would receive the rest.[26] This proposal was rejected by the Romanian Government, an action that Bulgaria later appreciated.[27]

Prince Carol I of Romania, proposed candidate to the Bulgarian throne during 1878 and 1879

As a consequence of the Russo-Turkish War of 1877 and 1878, Bulgaria was established as an autonomous principality under Ottoman control. Its emergence saw the federalist proposals with Romania replaced by the possibility of a personal union as Bulgaria looked for a prince. Some had already viewed Prince Carol I of Romania as the most suitable person for this. Carol I had gained prestige as commander-in-chief of the Romanian Army in the war (in which Romania had also participated alongside Russia), ending in the country's full independence as determined by the Treaty of Berlin.[20]

According to Romanian sources, at the end of the war, Nikolay Pavlovich Ignatyev, the Russian ambassador to the Ottoman Empire, "had whispered to Prince Carol I to assume the liberated Bulgarian land under his control", but this never happened supposedly because of the Romanian-Russian dispute over Southern Bessarabia. This contradicts notes published by Ignatyev himself which say Carol I, "had wanted to be elected in Bulgaria" and Prime Minister Ion C. Brătianu supported him in this. Ignatyev said the Romanians' intention was "to establish a personal union between Bulgaria and Romania in order to use the former to their own advantage".[28]

Before the election of the first Bulgarian prince began, Carol I was among the proposed nominees. The primary intention of his supporters was to establish a dual Bulgarian–Romanian state. According to the Bulgarian historian Simeon Radev, the United Kingdom supported this idea to counter Russian influence in the region. The Bulgarian politician Marko Balabanov said that in April 1879, the Englishman William Palgrave was trying to convince him and other Bulgarians of the advantages and importance of a union with Romania. Balabanov responded saying no decision would be made without Russian consent.[29] Austria-Hungary and Russia opposed the idea, probably because of concerns that a new state would become a competitor in the region.[30] Furthermore, Bulgarian press said the Romanians would hardly defend Bulgarian interests and their national unification.[29]

Carol I was not the only Romanian proposed for the Bulgarian throne. The son of the Wallachian prince Gheorghe Bibescu (who ruled between 1843 and 1848), Gheorghe G. Bibescu, who was a naturalized Frenchman, was discussed as a potential candidate as well. Backed by the French politician Léon Gambetta and some Austrian ones, he sent envoys to Bulgaria to propose himself to the throne. Supporters of Bibescu also emerged from the Bulgarian side including Svetoslav Milarov, who published the newspaper Balgarskiy lev in Veliko Tarnovo (Bulgaria); and Hristo Bachvarov and Dimitar Krastev Popov, authors of the newspaper Balgarin published in Giurgiu (Romania). Both newspapers wanted Bibescu to be the new prince of Bulgaria. In fact, the editors of Balgarin published a pamphlet in Vienna (Austria-Hungary) extolling the candidate's high qualities and saying that Bibescu would do the same as his father did in Wallachia: remove the "legacy of the bad Turkish administration and the Phanariot Caimacams". Pro-Bibescu propaganda said he was a descendant of boyars (nobles) from Veliko Tarnovo, the capital of the Second Bulgarian Empire.[31]

Bibescu had several opponents, such as the newspaper Maritsa and various Bulgarian political circles. The Bulgarian politician Petko Karavelov said "Prince Bibescu was not a Bulgarian prince, but he would hardly be honored even to be a head of stable of the future Bulgarian prince". In the end, neither Carol I nor Bibescu was discussed in the assembly for the election to the Bulgarian throne[31] and a German, Prince Alexander of Battenberg, was elected on 17 April 1879 and approved by the great powers and the Ottoman Sultan.[29] Later, it was proposed that Carol I adopt Alexander to unite the two countries, but the German Empire and Austria-Hungary rejected the idea.[32]

Stefan Stambolov, leader of the Bulgarian regency and strong supporter of a Bulgarian–Romanian personal union

During Alexander's reign, relations between Bulgaria and Romania remained good, reinforced by their opposition to Russian influence. According to Brătianu, who had been in a meeting with Carol I[32] (now King of Romania since 1881)[20] and Alexander in May 1886, the latter suggested the creation of a Balkan confederation in which Carol I would be the head of state and commander-in-chief of the army. The reason for this was because of the negative reactions of Russia and other powers that followed the unification of Bulgaria and Eastern Rumelia in 1885,[32] and the "liberation" of the region of Macedonia from Ottoman rule.[27] Supposedly, this state would have two separate governments but a common military command in case of war.[33] Brătianu communicated this to the Bulgarian diplomat Grigor Nachovich. Bulgaria later denied these claims, although the friendship between Bulgaria and Romania and the desire for a Balkan confederation was confirmed.[32]

Between 1886 and 1887, Bulgaria faced a crisis as Russia accused Alexander of opposing it. This effectively divided Bulgaria between Russophobes (supporters of Alexander) and Russophiles (supporters of Russian policies). The crisis began on 9 August 1886, when Russophiles launched a coup that forced Alexander to abdicate, immediately followed by another coup by Russophobes that restored him as monarch. Russia disapproved of these events, which made Alexander abdicate again on 25 August. Bulgaria, still controlled by Russophobes, had Stefan Stambolov taking power as regent. Between August 1886 and June 1887, a new search for a prince who could rule Bulgaria began.[34] This made a personal union between Bulgaria and Romania possible again.[32] Around 20 candidates were discussed, including the neighboring monarchs of Romania, Serbia and the Ottoman Empire,[35] as well as Montenegro.[36] Russia and Austria-Hungary again disapproved of this fearing the establishment of a large state in the region.[35]

The press, politicians and citizens of Bulgaria received the Bulgarian–Romanian union initiative with enthusiasm. It was seen as an opportunity to break Russia's influence in the Balkans decisively.[33] Still, Carol I was not among the leading candidates, although he was more popular than the sovereigns of Bulgaria's other neighbors. The regency, and especially Stambolov, supported initiatives for a Bulgarian–Romanian personal union.[35] Negotiations were held in 1886 to determine how a dual Bulgarian–Romanian state would function. It was agreed that the country would be under the rule of Carol I and that ethnic Romanians would occupy the key positions of its Ministry of Defense. According to the Romanian historian Alex Mihai Stoenescu, this was supported by Germany, the United Kingdom and even Austria-Hungary at some point, although France stayed on the Russian side. Stoenescu thought this powerful Bulgarian–Romanian state, with control of the western Black Sea, could act as a buffer state, which, added to the formation of Western Balkan states and the preservation of Greece in the Western sphere of influence, could have even prevented World War I.[33]

Political situation of Europe in the late 19th century, including Russia, Romania and Bulgaria

The regents hoped a union between Bulgaria and Romania would solve the crisis and be the first step towards a strongly anti-Russian wider Balkan confederation.[35] As it was an epoch when countries were fueled with nationalism, this view is regarded as questionable by some historians.[37] The regents turned to the British diplomat in Bulgaria, Frank Lascelles, since the United Kingdom vehemently defended the country's anti-Russian policies. He recommended them to abandon the idea since Carol I, being king of an independent country, would not accept the vassal status the title of Prince of Bulgaria still had towards the Ottoman Empire[38] until 1908, when Bulgaria gained its independence.[20] Stambolov began a new series of negotiations in October 1886 for a Bulgarian–Romanian confederation, this time with a single government; these extended into May 1887. Meanwhile, Russian actions in the two countries continued. On 4 September, there was an unsuccessful assassination attempt against Brătianu. It is thought that Russia could have been involved, since it happened shortly after the political events in Bulgaria. This prompted an aggressive response from the Romanian population, which began attacking newspaper editorial offices considered "Russian agents". As for Bulgaria, in November 1886, Russia broke relations with it until 1896.[33]

Throughout the crisis, Romania adopted a neutral position because of the intensification of the great powers' struggle for influence in Bulgaria. It offered Alexander asylum but also allowed Russophiles behind the coup to enter the country. In late 1886, Carol I recommended that Bulgaria reconcile with Russia and choose a Bulgarian native as prince. According to Radev, Carol I was careful about his movements towards Bulgaria so as not to become a direct opponent of Russia.[39] There was a chance the Romanians would oppose a union because of fear of Bulgarian influence on Romanian politics. Furthermore, a Romanian government minister whose identity was never revealed allegedly stated that a union could jeopardize Romanian control over Northern Dobruja, a region with a significant Bulgarian ethnic minority.[37]

Following the Ottoman Sultan's rejection of a proposed Bulgarian–Turkish dual state, the regents again turned towards Romania in February 1887. They first offered the Romanian consul in Ruse and, on 27 February, Stambolov went to the Romanian embassy in Sofia and said he wanted to see Carol I as ruler of Bulgaria.[36] However, Stambolov never made an official request as he thought the King of Romania would not want to "expose" Romania to the Triple Alliance for Bulgaria. This was a secret alliance between Germany, Austria-Hungary and Italy, formed in 1882, which Romania had joined a year later.[27] Russia's influence in the Balkan states further weakened after the Romanian political activist Zamfir Arbore published evidence for Russian spies' activities in Romania, which provoked outrage among other great powers.[33]

After all of these events, Russia, which saw the proposal of the Romanian monarch taking the Bulgarian throne as a violation of the Treaty of Berlin,[37] threatened on 10 June 1887 to break diplomatic relations with Romania. Carol I contacted German and Austro-Hungarian representatives, who informed him that Russia would invade Bulgaria and Romania if he accepted the Bulgarian crown's offer.[40] Therefore, Carol I, despite his interest in a union with Bulgaria,[37] informed Russia on 15 June that he would not accept a Bulgarian–Romanian state without Russian consent, thus ending the union project.[40][37] In the end, Ferdinand of Saxe-Coburg and Gotha, who came from a dynasty related to most European ruling houses at the time, was elected prince as Ferdinand I on 25 June 1887.[35] This did not end the matter in Romania. On 16 July, in its 12th issue, the Romanian newspaper Sentinela published the article Unirea Bulgariei cu România în persoana Regelui Carol I ("The union of Bulgaria with Romania in person of King Carol I") about the Bulgarian offer of a dual state.[41]

Georgi Dimitrov, Prime Minister of Bulgaria whose federalist proposals worried the Soviet Union

In the following decades, the federalization of the Balkans remained a central idea,[37] but the outcome of the Balkan Wars and World War I diminished its popularity, dividing the Balkans, including Bulgaria and Romania, into "winner" and "loser" countries.[42] In 1913, during the brief Second Balkan War, Romania joined the war against Bulgaria and took Southern Dobruja, confirmed by the Treaty of Bucharest.[43] Both countries were in conflict again between 1916 and 1918 during World War I,[44] although there were no territorial changes.[45] This rendered any unification proposal between them impossible for years.[44] Diplomatic relations in the Balkans began to improve after the signing of the Kellogg-Briand Pact of 1929, which renounced war as a state policy, and during the Great Depression. During the 1930s, conferences and the creation of the Balkan Entente in 1934 between Romania, Yugoslavia, Greece and Turkey reactivated the federation idea. Some intellectuals and politicians continued to want Bulgarians and Romanians to establish a larger and more powerful state.[46] For example, in 1936, the Romanian historian Victor Papacostea proposed a confederation he called "Balkania" under Romanian leadership designed to solve regional conflicts.[44]

Balkan socialists were particularly interested in a Balkan Federation. These included several Bulgarian (Dimitar Blagoev, Christian Rakovsky, Yanko Sakazov) and Romanian (Constantin Dobrogeanu-Gherea) socialist leaders. Socialists saw unification as a potential solution to imperialism and nationalism in the Balkan countries and as an opportunity to begin a transition from capitalism to socialism in the region.[44] In 1945, Yugoslavia, which was a kingdom, became a socialist federal republic. Negotiations began between Yugoslavia and Bulgaria in late 1944 and early 1945 to establish a South Slavic Federation.[47] Albania and Romania were sometimes seen as countries that could eventually be influenced and included in a larger Balkan Communist Federation.[48] However, the negotiations failed because of a dispute over the region of Macedonia and discrepancies in the status of Bulgaria with respect to Yugoslavia. Negotiations began again in 1947 and early 1948, when a Balkan or Balkan-Danubian Federation was proposed with the possibility of Romanian participation.[47]

The pro-Soviet and pro-communist governments established in Bulgaria and Romania after World War II somewhat improved the previously damaged relations between the two.[47] In fact, Bulgaria had already recovered Southern Dobruja earlier on 7 September 1940, when the Treaty of Craiova was signed.[49] During this period, both countries were diplomatically isolated, subordinated to the Soviet Union and occupied by its army.[50] The Soviet Union considered Romania as being in an "inferior" situation.[51] This was probably because of the war waged by Romania on the side of Nazi Germany against the Soviet Union between 1941 and 1944.[51][52][53] The Bulgarians' priorities were regarded as more important,[51] and their country was seen as an opportunity to expand Soviet interests over Romania, Greece and even Turkey. This gave Bulgaria a "protagonist" role in the Balkans.[54] Between the two countries, even if there continued to be national and political differences, the subject of federation was still active. In November 1946, the Romanian journalist Gheorghe Zaharia interviewed the Bulgarian Prime Minister, Georgi Dimitrov. The Balkans' situation eventually came up and Dimitrov said Romania could join a possible future Balkan Federation. This statement provoked the revocation of the initial permission given for Zaharia to publish the interview in the newspaper Scînteia since it angered Gheorghe Gheorghiu-Dej, leader of the Romanian Communist Party (PCR). The reason for this reaction was probably the desire not to irritate the Soviet Union.[55]

On 12 July 1947, a meeting in Sofia between Bulgarian and Romanian governmental officials was organized.[56] The leaders of both countries, Dimitrov (Bulgaria) and Petru Groza (Romania), discussed a rapprochement, with Groza saying "these Chinese walls" (referring to the borders) had to be torn down to "get to know the neighboring peoples better", perhaps subtly suggesting a union.[57] During the meeting, Gheorghe Tătărescu, then Romania's Minister of Foreign Affairs, said: "Nothing separates us anymore. We have no contrary interest and I see only one policy: of collaboration and understanding".[58] Romania's situation worsened after the abdication of its king, Michael I, on 30 December 1947. The country was now even more isolated and institutionally incompetent than before. Under these[59] circumstances, Bulgarian influence over Romania increased, and Romanian communists started to study and even copy the Bulgarian communist regime.[60] The Romanian Communist Party press began to idealize the Bulgarian leader, mention Bulgarian achievements and talk about the benefits that a union between the two could bring. However, during this period, there were no proposals or suggestions of a union from any Romanian official.[61]

Map of the Eastern Bloc in Europe, including the Soviet Union and its satellite states

On 15 and 16 January 1948, during Dimitrov's visit to Bucharest, the Bulgarian–Romanian Treaty of Friendship, Cooperation and Mutual Assistance was signed.[62] The actual motivation behind this treaty could have been the hope for a Bulgarian–Romanian union.[63] Dimitrov wanted to speak to the Romanian lawyer and journalist Petre Pandrea. Pandrea, a relative of the communist activist Lucrețiu Pătrășcanu, felt Romania should advocate for neutrality, with Switzerland being the example to follow and thus supporting the concept of "helvetization".[62] Dimitrov supported the application of his ideas to all of the Balkans and later spoke the phrase Dreimal Schweiz! ("three times Switzerland!") in German.[64] Pandrea was convicted of being involved in a plot attempting "the helvetization of Romania" in 1959.[62] Once imprisoned, he said that what Dimitrov meant was the incorporation of the concept of neutrality in Romania, Bulgaria and Yugoslavia. According to the Bulgarian historian Blagovest Nyagulov, this can also be interpreted as the subsequent federalization of the three countries following the Swiss model.[64]

When Dimitrov returned from Bucharest, he gave a press conference during which he proposed a Balkan and Danubian confederation, including Bulgaria and Romania, to which Poland and Czechoslovakia could later join. The leader of the Soviet Union, Joseph Stalin, called this statement "harmful" to Moscow. The newspaper Pravda criticized Dimitrov's words on 18 January and on 10 February. Later, a meeting was organized with Bulgarian, Soviet and Yugoslav representatives during which Dimitrov said, likely insincerely, that his statements were "harmful and wrong" and he would not repeat them.[65] The reason for this Soviet reaction was probably to ensure control over its satellite states and because Dimitrov's proposal could serve the United States' opposition to the emerging Eastern Bloc.[66] Stalin precluded and was against the possibility of a federation between Bulgaria and Romania or the improvement of relations between the two. According to him, a union between the two countries was "unthinkable" and "stupid" since there were no "Bulgarian–Romanian historical ties", repeating the Russian opposition to a Bulgarian–Romanian union once again.[67]

In the end, any attempt at a federation involving Romania and Bulgaria died out. Soviet influence over Romania increased significantly in late 1947 and early 1948, and the Tito-Stalin split later in 1948 forced Bulgaria and Yugoslavia to forget a potential South Slavic Federation.[68]

Map of the European Union

Over time, the idea of federalizing the Balkans faded. The Balkan Wars and World War I overshadowed the possibility and fueled nationalism and geopolitical conflicts. A federation in the region was only implemented once, in socialist Yugoslavia. This state failed and its dissolution was violent and dramatic, making a pan-Balkan federation even less popular and reinforcing the idea of culturally and ethnically homogeneous nation states.[19]

This situation was common between Bulgaria and Romania. Although both countries shared Orthodox Christianity, strong economic and cultural ties and a desire for independence from the Ottomans, nationalism and the intervention of external powers poisoned the friendship between them. Shortly before World War II, they were filled with ethnic and territorial hostilities. During the communist era, although relations improved, both country's foreign policies were contrary, as Bulgaria was loyal to the Soviet Union while Romania sought greater autonomy from it.[69]

According to Nyagulov, there are several reasons a Bulgarian–Romanian union failed to materialize.[70] Unionist proposals always came from the Bulgarian side, since Romania would give Bulgaria certain political advantages. However, their national priorities were not the same.[70] The Bulgarians focused on the Balkans, while the Romanians focused on Central Europe.[25] Furthermore, these projects were launched in an attempt to be liberated and independent, not because of any real interest in each other. The model of a nation state and territorial claims over other countries were not unusual in the region. Many of the great powers strongly opposed a Bulgarian–Romanian union on several occasions,[70] such as in 1878 and 1879, when Austria-Hungary and Russia disapproved of the Romanian candidates for the Bulgarian throne;[30] in 1886 and 1887, when the same countries opposed the election of a monarch from Bulgaria's neighbors[35] and Russia threatened to invade Bulgaria and Romania;[40] and in 1947 and 1948, when Romania had to reject any federative proposal with another country to avoid Soviet discontent.[55] The fierce opposition, especially from Russia (or the Soviet Union), is probably because of a fear of a strong and influential state that could compete against the great powers, following the "divide and rule" principle.[31][35][70] Even without external influence, some Bulgarians[30] and Romanians opposed a possible union.[37]

After the fall of the communist regimes in 1989, old and new disagreements emerged between Bulgaria and Romania. Nevertheless, the accession of both countries to the European Union[69] in 2007[19] has strengthened their relations and cooperation between them.[69] For example, in 2011, Bulgarian Prime Minister Boyko Borisov proposed buying jointly fighter aircraft with Romania, Turkey and Croatia. Nickolay Mladenov, the Bulgarian Minister of Foreign Affairs, went a step further by proposed unifying Bulgaria's air and naval forces with those of Romania. Many politicians and military experts have made similar suggestions because doing so would make maintenance of aircraft and pilot training cheaper.[71]

The efforts to effect European integration in the Balkans have provoked comments on a possible federation once again.[19] The European Union and its democratic values impose common visions for the development of its various societies, which may also include a future federation proposal.[70]

The following is a comparison between modern-day Bulgaria and Romania, based on recent years rather than the 19th and 20th centuries for convenience and data accessibility. Demographic data has been taken from the each country's 2011 census,[72][73] while economic, geographic and military data originates from the CIA's reference resource The World Factbook.[74][75]

	Bulgaria	Romania
Population (2011)	7,364,570[76]	20,121,641[77]
Area	110,879 km2 (42,811 sq mi)[74]	238,391 km2 (92,043 sq mi)[75]
Density (2011)	66.42/km2 (172.03/sq mi)[76][74]	84.41/km2 (218.61/sq mi)[77][75]
Ethnic composition (2011)[lower-alpha 1]	Bulgarians (84.8%), Turks (8.8%), Romani people (4.9%), others (1.5%)[80]	Romanians (88.9%), Hungarians (6.5%), Romani (3.3%) others (1.3%)[79]
Capital	Sofia[74]	Bucharest[75]
Coastline	354 km (220 mi)[74]	225 km (140 mi)[75]
Elevation	Average: 472 m (1,549 ft) Lowest: 0 m (0 ft), Black Sea Highest: 2,925 m (9,596 ft), Musala[74]	Average: 414 m (1,358 ft) Lowest: 0 m (0 ft), Black Sea Highest: 2,544 m (8,346 ft), Moldoveanu[75]
Currency	Lev (BGN)[74]	Leu (RON)[75]
GDP (2017 estimate)	PPP: $154 billion Nominal: $56.9 billion[74]	PPP: $483 billion Nominal: $212 billion[75]
Military size (2019 estimate)	Around 31,000 active personnel[74]	Around 72,000 active personnel[75]

Map of the provinces of Bulgaria, including Montana, Vidin and Vratsa on the northwest

On 4 January 2018, the Bulgarian newspaper Nova published an interview with Boris Kamenov,[81] a Bulgarian construction worker in Vratsa Province.[82] He allegedly said residents of northwestern Bulgaria were preparing a referendum to secede from Bulgaria and afterwards join Romania. The territories in question were the provinces of Montana, Vidin and Vratsa. The main reason to hold a referendum was the existing corruption in Bulgaria. Nova said that Kamenov's motivation to join Romania was because "the judiciary is much more democratic and reformed" and because their fight against corruption was more efficient. According to the newspaper, Kamenov also pointed out that the people of the northwest had always fought for "true democracy". It was in that region where the Chiprovtsi and September uprisings began. Another local supposed supporter of the idea said there were no jobs in the region. Nova also said Kamenov wanted "a man like Puigdemont" for the Bulgarian northwest.[81] The region with the three provinces is the poorest in Bulgaria, without natural resources and substantial emigration.[83]

The news had inevitable repercussions and caused controversy in Bulgaria and Romania, where many other newspapers published the same article from Nova with little or no change in the text. Just a day later, the Romanian journalist Dan Alexe criticized the proposal as unrealistic, saying that Borisov's "authoritarian" government would not allow a referendum and, even if one happened, the legal difficulties of achieving unification with Romania would be very great, making it almost impossible.[83] Later the same day, Kamenov said the press had misinterpreted and distorted his idea. He referred to "independence" from corruption, not from Bulgaria, and mentioned Romania because the judicial system was better there. He said that if he had wanted to join another country, it would have been Germany or Austria. Kamenov complained about the attitude of the press, which assumed he had already requested a referendum, and the journalists', who were calling him repeatedly for explanations.[82]

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• Hitchins, Keith (2014). A concise history of Romania. Cambridge University Press. pp. 1–327. doi:10.1017/CBO9781139033954. ISBN 9780521872386.
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• Madgearu, Alexandru (2016). The Asanids: The Political and Military History of the Second Bulgarian Empire (1185-1280). BRILL. pp. 1–359. ISBN 9789004333192.
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• Nyagulov, Blagovest (2012). "Ideas of federation and personal union with regard to Bulgaria and Romania". Bulgarian Historical Review (3–4): 36–61. ISSN 0204-8906.
• Păcurariu, Mircea (2007). "Romanian Christianity". In Parry, Ken (ed.). The Blackwell Companion to Eastern Christianity. Blackwell Publishing. pp. 187–206. ISBN 9780631234234.
• Petcu, Marian (2012). Istoria jurnalismului din România în date: enciclopedie cronologică [The history of journalism in Romania in data: chronological encyclopedia] (in Romanian). Iași: Polirom. pp. 1–1414. ISBN 9789734630677.
• Stoenescu, Alex Mihai (2010). Istoria loviturilor de stat în România: 1821-1999 [The history of coups d'état in Romania: 1821-1999] (in Romanian). 2. Editura RAO. pp. 1–154. ISBN 9786068255040.

• Alexe, Dan (5 January 2018). "De ce nu au cum să se unească trei județe din Bulgaria cu România" [Why three counties in Bulgaria have no way to unite with Romania]. Vice (in Romanian).
• Bâtcă, Marius (31 May 2011). "România, Bulgaria și Turcia – avioane de luptă la comun?" [Romania, Bulgaria and Turkey – joint aircraft?]. Ziua Veche (in Romanian).
• Borisova, Biljana (4 January 2018). "В Северозапада организират подписка за обявяване на независимост" [Northwest organizes a referendum to declare independence]. Nova (in Bulgarian).
• Ionescu, Sinziana (5 January 2018). "Boris Kamenov, separatistul din Bulgaria: "Dacă voiam unirea cu altă țară, am fi ales Austria sau Germania, nu România"" [Boris Kamenov, the separatist of Bulgaria: "If I wanted to unite with another country, I would have chosen Austria or Germany, not Romania"]. Adevărul (in Romanian).

Censuses:

• "Преброяване 2011 (окончателни данни)" [2011 census (final data)] (PDF) (in Bulgarian). National Statistical Institute. 2011. pp. 1–50. Archived from the original (PDF) on 22 December 2018.
• "Rezultate definitive ale recensământului populației și al locuințelor – 2011" [Definitive results of the population and dwelling census – 2011] (PDF) (in Romanian). National Institute of Statistics. 2011. pp. 1–14. Archived (PDF) from the original on 17 July 2013.

CIA's The World Factbook:

• "Bulgaria". The World Factbook. Central Intelligence Agency (CIA). Archived from the original on 13 July 2020. Retrieved 14 July 2020.
• "Romania". The World Factbook. Central Intelligence Agency (CIA). Archived from the original on 25 June 2020. Retrieved 14 July 2020.