State of Slovenes, Croats and Serbs

short-lived state on the Balkan Peninsula between late-October and early-December 1918

The State of Slovenes, Croats and Serbs (Slovene: Država Slovencev, Hrvatov in Srbov; Croatian: Država Slovenaca, Hrvata i Srba; Serbian: Држава Словенаца, Хрвата и Срба) was a country that was created in October 1918, in Southeast Europe. Before that, its land was a part of Austria-Hungary, as well as Serbia and Montenegro. Four Bulgarian territories were also added to the state in 1919. When Austria-Hungary lost the World War I, it was broken up. The Treaty of Saint Germain-en-Laye (Austria) and the Treaty of Trianon (Hungary) dealt with the transfer of territory from the dissolved Austro-Hungarian Empire to the newly formed Kingdom of Serbs, Croats and Slovenes. Slovenes, Croats and Serbs are slavic peoples that lived in the south of Austria-Hungary. Their leaders and representatives wanted their people to come together and live in one country. In December 1918, soon after it was created, it joined the Kingdom of Serbia where many Serbs were already independent. This new country became the Kingdom of Serbs, Croats, and Slovenes which changed its name to Yugoslavia in 1929.

State of Slovenes, Croats and Serbs
Država Slovenaca, Hrvata i Srba
(Croatian)
Држава Словенаца, Хрвата и Срба
(Serbian)
Država Slovencev, Hrvatov in Srbov (Slovene)
1918–1918
Flag of Slovenes, Croats and Serbs
Flag
Coat of arms of Slovenes, Croats and Serbs
Coat of arms
The State of Slovenes, Croats and Serbs in 1918. Istria was a disputed area, officially ceded to Italy only with the Treaty of Rapallo (1920).
The State of Slovenes, Croats and Serbs in 1918. Istria was a disputed area, officially ceded to Italy only with the Treaty of Rapallo (1920).
StatusUnrecognized provisional government
CapitalZagreb
Common languages
President of National Council 
• 1918
Anton Korošec
Vice President 
• 1918
Ante Pavelić Sr.
• 1918
Svetozar Pribićević
LegislatureNational Council of Slovenes, Croats and Serbs
Historical eraInterwar period
• Proclaimed secession
29 October 1918

1 December 1918
Preceded by
Succeeded by
Bosnia and Herzegovina
Kingdom of Croatia-Slavonia
Duchy of Carniola
Kingdom of Dalmatia
Kingdom of Serbs, Croats and Slovenes
Kingdom of Italy

The State of Slovenes, Croats and Serbs was independent for a very short time. During this time, other states didn't recognize it, but they soon recognized the Kingdom of Serbs, Croats, and Slovenes.