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History of Bulgaria
Coat of arms of Bulgaria
Prehistory
Odrysian kingdom
Roman Thrace
Old Great Bulgaria
First Bulgarian Empire
Byzantine Bulgaria
Second Bulgarian Empire
Early Ottoman Bulgaria
National Awakening
Tsardom of Bulgaria
People's Republic of Bulgaria
Republic of Bulgaria

 v • d • e 

The Treaty of San Stefano of March 3, 1878 provided for a self-governing Bulgarian state, which comprised the geographical regions of Moesia, Thrace and Macedonia. Based on that date Bulgarians celebrate Bulgaria's national day each year. Fearing the establishment of a large Russian client state on the Balkans, the other Great Powers, however, were not willing to agree to the treaty.

1878–1912

Borders of Bulgaria according to the Treaty of San Stefano of 3 March 1878

As a result, the Treaty of Berlin (1878), under the supervision of Otto von Bismarck of Germany and Benjamin Disraeli of Britain, revised the earlier treaty, and scaled back the proposed Bulgarian state. An autonomous Principality of Bulgaria was created, between the Danube and the Stara Planina range, with its seat at the old Bulgarian capital of Veliko Turnovo, and including Sofia. This state was to be under nominal Ottoman sovereignty but was to be ruled by a prince elected by a congress of Bulgarian notables and approved by the Powers. They insisted that the Prince could not be a Russian, but in a compromise Prince Alexander of Battenberg, a nephew of Tsar Alexander II, was chosen. An autonomous Ottoman province under the name of Eastern Rumelia was created south of the Stara Planina range, whereas Macedonia was returned under the sovereignty of the Sultan.

Unification with Eastern Rumelia and war with Serbia

Balkan states around 1900.

The Bulgarians adopted an advanced democratic constitution, and power soon passed to the Liberal Party led by Stefan Stambolov. Prince Alexander had conservative leanings, and at first opposed Stambolov's policies, but by 1885 he had become sufficiently sympathetic to his new country to change his mind, and supported the Liberals. He also supported the Unification of Bulgaria and Eastern Rumelia, which was brought about by a coup in Plovdiv in September 1885. The Powers did not intervene because of the power struggles between them. Shortly after, Serbia declared war on Bulgaria in the hope of grabbing territory while the Bulgarians were distracted. The Bulgarians defeated them at Slivnitsa and used the momentum to launch a counter attack. The Serbian army was pushed deeply into Serbian territory, but Bulgaria was forced to halt its advance after the Austro-Hungarian Empire threatened to intervene on the Serbian side. The unification was accepted by the Powers in the form of personal union.

Ferdinand

Tsar Ferdinand of Bulgaria

These events made Alexander very popular in Bulgaria, but Russia was increasingly dissatisfied at his liberal tendencies. In August 1886 they fomented a coup, in the course of which Alexander was forced to abdicate and was exiled to Russia. Stambolov, however, acted quickly and the participants in the coup were forced to flee the country. Stambolov tried to reinstate Alexander, but strong Russian opposition forced the prince to abdicate again. In July 1887 the Bulgarians elected Ferdinand of Saxe-Coburg-Gotha as their new Prince. Ferdinand was the "Austrian candidate" and the Russians refused to recognise him. Ferdinand initially worked with Stambolov, but by 1894 their relationship worsened. Stambolov resigned and was assassinated in July 1895. Ferdinand then decided to restore relations with Russia, which meant returning to a conservative policy.

There was a substantial Bulgarian population still living under Ottoman rule, particularly in Macedonia. To complicate matters, Serbia and Greece too made claims over parts of Macedonia, while Serbia, as a Slavic nation, also considered Macedonian Slavs as belonging to Serbian nation. Thus began a five-sided struggle for control of these areas which lasted until World War I. In 1903 there was a Bulgarian insurrection in Ottoman Macedonia and war seemed likely. In 1908 Ferdinand used the struggles between the Great Powers to declare Bulgaria a fully independent kingdom, with himself as Tsar, which he did on 5 October (though celebrated on 22 September, as Bulgaria remained officially on the Julian Calendar until 1916) in the St Forty Martyrs Church in Veliko Tarnovo.

Ilinden-Preobrazhenie Uprising

The main external political problem confronting Bulgaria throughout the period up to World War I was the fate of Macedonia and Eastern Thrace. At the end of 19th century the Internal Macedonian-Adrianople Revolutionary Organization was founded and began the preparation of an armed uprising in the regions still occupied by the Ottoman Turks. Relying in part on nation-wide support on the part of the Principality of Bulgaria, IMARO got down to organizing a network of committees in Macedonia and Thrace. In August 1903 a mass armed uprising, known in history as the Ilinden-Preobrajenie, broke out in Macedonia and Thrace. Its aim was to liberate those regions, or at least to draw the attention of the Great Powers and make them advocate for the improvement of the living conditions for the population through legal and economic reforms. After three months of fierce battles the Ottoman army crushed the uprising using much cruelty against the civilian population.

The Balkan Wars

Main article: Balkan Wars

In 1911 the Nationalist Prime Minister, Ivan Geshov, set about forming an alliance with Greece and Serbia, and the three allies agreed to put aside their rivalries to plan a joint attack on the Ottomans.

In February 1912 a secret treaty was signed between Bulgaria and Serbia, and in May 1912 a similar treaty was signed with Greece. Montenegro was also brought into the pact. The treaties provided for the partition of Macedonia and Thrace between the allies, although the lines of partition were left dangerously vague. After the Ottomans refused to implement reforms in the disputed areas, the First Balkan War broke out in October 1912. (See Balkan Wars for details.)

Bulgarian dead in the Balkan Wars

The allies had an astonishing success. The Bulgarian army inflicted several defeats on the Ottoman forces and advanced threateningly against Istanbul, while the Serbs and the Greeks took control of Macedonia. The Ottomans sued for peace in December. Negotiations broke down, and fighting resumed in February 1913. The Ottomans lost Adrianople to a combined Bulgarian-Serbian task force. A second armistice followed in March, with the Ottomans losing all their European possessions west of the Midia-Enos line, not far from Istanbul. Bulgaria gained possession of most of Thrace, including Adrianople and the Aegean port of Dedeagach (today Alexandroupoli). Bulgaria also gained a slice of Macedonia, north and east of Thessaloniki (which went to Greece), but only some small areas along her western borders.

Boundaries on the Balkans after the First and the Second Balkan War (1912-1913)

Bulgaria sustained the heaviest casualties of any of the allies, and on this basis felt entitled to the largest share of the spoils. The Serbs in particular did not see things this way, and refused to vacate any of the territory they had seized in northern Macedonia (that is, the territory roughly corresponding to the modern Republic of Macedonia), stating that the Bulgarian army had failed to accomplish its pre-war goals at Adrianople (i. e., failing to capture it without Serbian help) and that the pre-war agreements on the division of Macedonia had to be revised. Some circles in Bulgaria inclined toward going to war with Serbia and Greece on this issue. In June 1913 Serbia and Greece formed a new alliance, against Bulgaria. The Serbian Prime Minister, Nikola Pasic, told Greece it could have Thrace if Greece helped Serbia keep Bulgaria out of Serbian part of Macedonia, and the Greek Prime Minister Eleftherios Venizelos agreed. Seeing this as a violation of the pre-war agreements, and discretely encouraged by Germany and Austria-Hungary, Tsar Ferdinand declared war on Serbia and Greece and the Bulgarian army attacked on June 29. The Serbian and the Greek forces were initially on the retreat on the western border, but they soon took the upper hand and forced Bulgaria into retreat. The fighting was very harsh, with many casualties, especially during the key Battle of Bregalnitsa. Soon Romania entered the war and attacked Bulgaria from the north. The Ottoman Empire also attacked from the south-east. The war was now definitely lost for Bulgaria, which had to abandon most of her claims of Macedonia to Serbia and Greece, while the revived Ottomans retook Adrianople. Romania took possession of southern Dobruja.

War and social conflict

World War I

In the aftermath of the Balkan Wars Bulgarian opinion turned against Russia and the western powers, whom the Bulgarians felt had done nothing to help them. The government of Vasil Radoslavov aligned Bulgaria with Germany and Austria-Hungary, even though this meant also becoming an ally of the Ottomans, Bulgaria's traditional enemy. But Bulgaria now had no claims against the Ottomans, whereas Serbia, Greece and Romania (allies of Britain and France) were all in possession of lands perceived in Bulgaria as Bulgarian. Bulgaria, recuperating from the Balkan Wars, sat out the first year of World War I, but when Germany promised to restore the boundaries of the Treaty of San Stefano, Bulgaria, which had the largest army in the Balkans, declared war on Serbia in October 1915. Britain, France and Italy then declared war on Bulgaria.

Although Bulgaria, in alliance with Germany, Austria-Hungary and the Ottomans, won military victories against Serbia and Romania, occupying much of Macedonia (taking Skopje in October), advancing into Greek Macedonia, and taking Dobruja from the Romanians in September 1916, the war soon became unpopular with the majority of Bulgarian people, who suffered great economic hardship and also disliked fighting their fellow Orthodox Christians in alliance with the Muslim Ottomans. The Agrarian Party leader, Aleksandur Stamboliyski, was imprisoned for his opposition to the war. The Russian Revolution of February 1917 had a great effect in Bulgaria, spreading antiwar and anti-monarchist sentiment among the troops and in the cities. In June Radoslavov's government resigned. Mutinies broke out in the army, Stamboliyski was released and a republic was proclaimed.

The interwar years

In September 1918 the Serbs, British, French and Greeks broke through on the Macedonian front and Tsar Ferdinand was forced to sue for peace. Stamboliyski favoured democratic reforms, not a revolution. In order to head off the revolutionaries, he persuaded Ferdinand to abdicate in favour of his son Boris III. The revolutionaries were suppressed and the army disbanded. Under the Treaty of Neuilly (November 1919), Bulgaria lost its Aegean coastline to Greece and nearly all of its Macedonian territory to the new state of Yugoslavia, and had to give Dobruja back to the Romanians (see also Dobruja, Western Outlands, Western Thrace). Elections in March 1920 gave the Agrarians a large majority, and Stamboliyski formed Bulgaria's first genuinely democratic government.

Stamboliyski faced huge social problems in what was still a poor country inhabited mostly by peasant smallholders. Bulgaria was saddled with huge war reparations to Yugoslavia and Romania, and had to deal with the problem of refugees as pro-Bulgarian Macedonians had to leave the Yugoslav Macedonia. Nevertheless Stamboliyski was able to carry through many social reforms, although opposition from the Tsar, the landlords and the officers of the much-reduced but still influential army was powerful. Another bitter enemy was the Internal Macedonian Revolutionary Organization (VMRO), which favoured a war to regain Macedonia for Bulgaria. Faced with this array of enemies, Stamboliyski allied himself with the Bulgarian Communist Party and opened relations with the Soviet Union.

In March 1923 Stamboliyski signed an agreement with Yugoslavia recognising the new border and agreeing to suppress VMRO. This triggered a nationalist reaction, and on 9 June there was a coup after which Stamboliykski was assassinated (beheaded). A right wing government under Aleksandar Tsankov took power, backed by the Tsar, the army and the VMRO, who waged a White terror against the Agrarians and the Communists. The Communist leader Georgi Dimitrov fled to the Soviet Union. There was savage repression in 1925 following the second of two failed attempts on the Tsar's life in the bomb attack on Sofia Cathedral (the first attempt took place in the mountain pass of Arabakonak). But in 1926 the Tsar persuaded Tsankov to resign and a more moderate government under Andrey Lyapchev took office. An amnesty was proclaimed, although the Communists remained banned. The Agrarians reorganised and won elections in 1931 under the leadership of Nikola Mushanov.