Romгўnia,: 1866вђ“1947

: The collapse of the Austro-Hungarian and Russian Empires allowed for the "Great Union" of 1918. Territories including Transylvania, Bessarabia, and Bukovina were unified with the Old Kingdom, nearly doubling the country's size and population—a state known as Greater Romania ( România Mare ).

Romania initially remained neutral in World War I but joined the (Allies) in 1916 after being promised Transylvania and other territories. România, 1866–1947

: Following Carol I's death in 1914, Ferdinand I led the country through the war and was crowned King of all Romanians in 1922. 4. Political Turmoil and the Second World War (1930–1944) : The collapse of the Austro-Hungarian and Russian