"What country, an ideal of the ""Illyrian Movement"" began to become a reality after the 1918 collapse of Habsburg Austria-Hungary at the end of World War I, and was formally renamed as a ""Kingdom"" in 1929?"
Creation of Yugoslavia Creation of Yugoslavia Yugoslavia was a state concept among the South Slavic intelligentsia and later popular masses from the 17th to early 20th centuries that culminated in its realization after the 1918 collapse of Austria-Hungary at the end of World War I and the formation of the Kingdom of Serbs, Croats and Slovenes. However, the kingdom was better known colloquially as Yugoslavia (or similar variants); in 1929 it was formally renamed the "Kingdom of Yugoslavia". The first idea of a state for all South Slavs emerged in the late 17th century, a product of visionary thinking of Croatian writers and
Hungary in World War I and its allies from raising territorial claims against Hungary. They finally gave three quarter of pre-war Hungary to surrounding countries by the Peace Treaty of Trianon (4 June 1920). On November 11, 1918, World War I ended for Austria-Hungary with a complete military loss, even if at the time of the collapse, all forces were standing outside the borders of 1914. With the collapse of the army, Austria-Hungary also collapsed. The ethnic groups of Kingdom of Hungary called for independent nation-states. In the Treaty of Trianon signed on June 4, 1920, Hungary lost two-thirds of its territory, more than half