After World War II and the civil war Yugoslavia became a communist state known as the Socialist Federal Republic of Yugoslavia, ruled by Josip Broz Tito and the League of Communists of Yugoslavia. After Tito's death in 1980, the federation started a process of dissolution which finished in a series of civil wars in the early 1990s. Through the 1990s, constituent republics Serbia and Montenegro comprised the Federal Republic of Yugoslavia, which was restructured in 2003 into a confederation called Serbia and Montenegro. The state union ended with Montenegro's separation following the 2006 independence referendum. Currently Serbia is a parliamentary republic. There was no referendum of restoration of parliamentary monarchy, although political organizations and certain public in favor of it, do exist.