|Preceded by||Succeeded by|
Part of a series on the
|History of Montenegro|
|Middle Ages and early modern|
|Modern and contemporary|
The Kingdom of Montenegro (Serbian: Краљевина Црнa Горa / Kraljevina Crna Gora), was a monarchy in southeastern Europe, present day Montenegro, during the tumultuous years on the Balkan Peninsula leading up to and during World War I. Legally it was a constitutional monarchy, but absolutist in practice. On 28 November 1918, following the end of World War I, with the Montenegrin government still in exile, the Podgorica Assembly proclaimed unification with the Kingdom of Serbia which itself was merged into the Kingdom of Serbs, Croats and Slovenes three days later, on 1 December 1918.
Prince Nicholas of Montenegro proclaimed the Kingdom of Montenegro in Cetinje on 28 August 1910. King Nicholas I (as he became) had ruled the country as Prince since 1860, and had initiated several modernizing reforms at the beginning of the 20th century, such as introducing a constitution and a new currency, the Montenegrin perper.
Montenegro joined the First Balkan War in 1912, hoping to win a share in the last Ottoman-controlled areas of Rumelia. Montenegro did make further territorial gains by splitting Sandžak with Serbia on 30 May 1913. But the Montenegrins had to abandon the newly captured city of İşkodra (Skadar in Serbian, modern-day Shkodër) to the new state of Albania in May 1913, at the insistence of the Great Powers, despite the Montenegrins having invested 10,000 lives into the capture of the town (April 1913) from the Ottoman-Albanian forces of Esad Pasha. Essad Pasha made a deal to surrender the town to the Montenegrins in exchange for Montenegro supporting his claims in Central Albania. However, as Shkodër and the surroundings had a large ethnic Albanian majority, the area went to the state of Albania instead.
When the Second Balkan War broke out in June 1913, Serbia fought against Bulgaria, and King Nicholas sided with Serbia.
During World War I (1914-1918) Montenegro allied itself with the Triple Entente, in line with King Nicholas' pro-Serbian policy. Accordingly, Austria-Hungary occupied Montenegro from 15 January 1916 to October 1918.
On 20 July 1917, the signing of the Corfu Declaration foreshadowed the unification of Montenegro with Serbia. On 26 November 1918, Podgorica Assembly, an elected body claiming to represent Montenegrin people, unanimously adopted a resolution deposing king Nicholas I (who was still in exile) and unifying Montenegro with Serbia. Upon this event Nicholas I, who had previously supported unification with Serbia into a greater state with his dynasty playing the pivotal role, switched to promoting Montenegrin nationalism and opposing the union with Serbia, a position he maintained until his death in France in 1921.
On 1 December 1918, the Kingdom of Yugoslavia was created, where both Serbia and Montenegro were parts.
Kingdom of Dalmatia
Banat, Bačka and Baranja
Free State of Fiume
Italian province of Zadar
Fascist Italy and
|Democratic Federal Yugoslavia
Federal People's Republic of Yugoslavia
Socialist Federal Republic of Yugoslavia
Consisted of the
Socialist Republics of
| Republic of Slovenia
Independent State of Croatia
| Republic of Croatiab
Croatian War of Independence
|Bosnia|| Bosnia and Herzegovinac
|Vojvodina||Part of the Délvidék region of Hungary||Autonomous Banatd
(part of the German
Territory of the
|Federal Republic of Yugoslavia||State Union of Serbia and Montenegro||Republic of Serbia|| Republic of Serbia
Includes the autonomous province of Vojvodina
|Serbia||Kingdom of Serbia
|Territory of the Military Commander in Serbia
|Kosovo||Part of the Kingdom of Serbia
|Mostly annexed by Albania
along with western Macedonia and south-eastern Montenegro
|Republic of Kosovog|
|Metohija||Kingdom of Montenegro
Metohija controlled by Austria-Hungary 1915–1918
|Montenegro||Protectorate of Montenegrof
|Macedonia||Part of the Kingdom of Serbia
|Annexed by the Kingdom of Bulgaria
|Republic of Macedoniah|