in the Kingdom: Kosovo, Rascia and Zeta. In 1929 the Kingdom was transformed into the Kingdom of Yugoslavia. The territories of Kosovo were split among the Banate of Zeta, the Banate of Morava and the Banate of Vardar. The Kingdom lasted until the World War II Axis invasion of April 1941. After the Axis invasion, the greater part of Kosovo became a part of Italian-controlled Fascist Albania, and a smaller, Eastern part by the Axis allied Tsardom of Bulgaria and Nazi German-occupied Serbia. Since the Albanian Fascist political leadership had decided in the Conference of Bujan that Kosovo would remain a part of Albania they started expelling the Serbian and Montenegrin settlers "who had arrived in the 1920s and 1930s". Prior to the surrender of Fascist Italy in 1943, the German forces took over direct control of the region. After numerous Serbian and Yugoslav Partisans uprisings, Kosovo was liberated after 1944 with the help of the Albanian partisans of the Comintern, and became a province of Serbia within the Democratic Federal Yugoslavia. The Autonomous Region of Kosovo and Metohija was formed in 1946 to placate its regional Albanian population within the People's Republic of Serbia as a member of the Federal People's Republic of Yugoslavia under the leadership of the former Partisan leader, Josip Broz Tito, but with no factual autonomy. This was the first time Kosovo came to exist with its present boundaries. After Yugoslavia's name changed to the Socialist Federal Republic of Yugoslavia and Serbia's to the Socialist Republic of Serbia in 1963, the Autonomous Region of Kosovo was raised to the level of Autonomous Province (which Vojvodina had had since 1946) and gained inner autonomy in the 1960s. In the 1974 constitution, the Socialist Autonomous Province of Kosovo's government received higher powers, including the highest governmental titles—President and Premier and a seat in the Federal Presidency, which made it a de facto Socialist Republic within the Federation, but remaining as a Socialist Autonomous Region within the Socialist Republic of Serbia. Serbo-Croat and Albanian were defined official on the provincial level marking the two largest linguistic Kosovan groups: Serbs and Albanians. The word Metohija was also removed from the title in 1974 leaving the simple short form, Kosovo. In the 1970s, an Albanian nationalist movement pursued full recognition of the Province of Kosovo as another Republic within the Federation, while the most extreme elements aimed for full-scale independence.