The Kingdom of Yugoslavia (Yugoslav, Cyrillic script: Kra_evina _ugoslavi_a; Latin script: Kraljevina Jugoslavija) was a state stretching from the Western Balkans to Central Europe which existed during the often-tumultuous interwar era of 1918_1941. It was formed in 1918 by the merger of the provisional State of Slovenes, Croats and Serbs, formed from territories of the defunct Austro-Hungarian Empire, with the formerly independent Kingdom of Serbia. The Kingdom of Montenegro united with Serbia just five days earlier, while the regions of Kosovo, Vojvodina and Vardar Macedonia were parts of Serbia prior to the unification. For its first eleven years of existence it was officially called Kingdom of Serbs, Croats and Slovenes, but the term Yugoslavia was its colloquial name from the very beginning.
Contributions by Dejvid, Joy, and PaxEquilibrium.