Bulgaria had been a widely autonomous
principality since 13 July 1878
Congress of Berlin and the end of the
Russo-Turkish War (1877–78). Although it was still technically under the
suzerainty of the
Sublime Porte, this was a
legal fiction that Bulgaria only acknowledged in a formal way. Much like the states of the
Holy Roman Empire after 1648, Bulgaria
de facto acted as an independent principality with its own constitution, flag, and anthem, and conducted a separate foreign policy. From 1880, it also had its own currency. On , it had
unified with the Bulgarian-majority Ottoman autonomous province of
Eastern Rumelia. After liberation, Bulgaria's main external goal was the unification of all Bulgarian-inhabited areas under foreign rule into a single Bulgarian state: the main targets of Bulgarian
irredentism were
Macedonia and southern
Thrace, which continued to be part of the Ottoman realm. In order to join an anti-Ottoman alliance and claim those territories by war, however, Bulgaria had to proclaim its independence first. Normally, this would have constituted a violation of the
Treaty of Berlin's terms, and would have been unlikely to be approved by the
Great Powers. However, the chaos that ensued in the Ottoman Empire following the
Young Turk Revolution of 1908 provided suitable conditions for the Bulgarian proclamation of independence. Many of the Great Powers had also abandoned their support for the Ottomans, looking for territorial gains instead:
Austria-Hungary was
hoping to annex the
Bosnia Vilayet, the
United Kingdom was looking to seize the empire's
Arab territories in the east, and the
Russian Empire's main target was control over the
Turkish Straits. In September 1908 at a meeting in
Buchlov (, contemporary
Czech Republic), envoys of Austria-Hungary and Russia supported each other's plans and agreed not to hinder Bulgaria's proclamation of independence which was likely to take place. Towards the middle of September, the democratic government of
Aleksandar Malinov had decided that the suitable moment was near. , Prince
Ferdinand arrived at
Rousse from a break in his Hungarian mansion. He was awaited there by the government to discuss the final decision on board the
Krum ship. The delegation then took the train to Tarnovo, where the official proclamation would take place. According to recent research, it was at the
Dve Mogili railway station that the
manifesto of independence was completed on . ==Independence==