his sparked the beginning of the Yugoslav Partisan movement, a communist multi-ethnic anti-fascist resistance group led by Josip Broz Tito. The movement grew rapidly and at the Tehran Conference in December 1943 the Partisans gained recognition from the Allies. With Allied support in logistics, equipment, training and air power, and with the assistance of Soviet troops taking part in the 1944 Belgrade Offensive, Partisans gained control of Yugoslavia and border regions of Italy and Austria by May 1945. Political aspirations of the movement were reflected in the ZAVNOH (National Anti-Fascist Council of the People's Liberation of Croatia), which developed in 1943 as the bearer of Croatian statehood and later transformed into the Parliament of Croatia in 1945, and AVNOJ—its counterpart at Yugoslav level.
Federal Yugoslavia and independence
After the World War II, Croatia became a single-party Socialist federal unit of the SFR Yugoslavia, ruled by the Communists, but enjoying a degree of autonomy within the federation. In 1967, Croatian authors and linguists published a Declaration on the Status and Name of the Croatian Standard Language demanding greater autonomy for Croatian language. The declaration contributed to a national movement seeking greater civil rights and decentralization of the Yugoslav economy, culminating in the Croatian Spring of 1971, suppressed by Yugoslav leadership. Still, the 1974 Yugoslav Constitution gave increased autonomy to federal units, basically fulfilling a goal of the Croatian Spring, and providing a legal basis for independence of the federative constituents.
In the 1980s the political situation in Yugoslavia deteriorated with national tension fanned by the 1986 Serbian SANU Memorandum and the 1989 coups in Vojvodina, Kosovo and Montenegro. In January 1990, the Communist Party fragmented along national lines, with the Croatian faction demanding a looser federation. In the same year, the first multi-party
