Serbia is located in Southeastern Europe, between Macedonia and Hungary. The Kingdom of Serbs, Croats, and Slovenes was formed in 1918, with Serbia as the dominant partner in this state, which in 1929 adopted the name Yugoslavia. During World War II, the Axis powers occupied Yugoslavia. The military and political movement headed by Tito took full control of Yugoslavia when the German forces were defeated in 1945, and the Socialist Federation of Yugoslavia was proclaimed, comprising Serbia, Montenegro, Slovenia, Croatia, Bosnia-Hercegovina, and Macedonia. With the death of Tito in 1980, separatist and nationalist tensions emerged in Yugoslavia. In 1989, Slobodan Milosevic became president of the Serbian Republic and his ultranationalist calls for Serbian domination led to the violent breakup of Yugoslavia along ethnic lines. In 1991, Croatia, Slovenia, and Macedonia declared independence, followed by Bosnia in 1992. The remaining republics of Serbia and Montenegro declared a new Federal Republic of Yugoslavia (FRY) in April 1992. FRY elections in September 2000 led to the ouster of Milosevic and installed Vojislav Kostunica as president. A broad coalition of democratic reformist parties known as DOS (the Democratic Opposition of Serbia) was subsequently elected to parliament in December 2000 and took control of the government. DOS arrested Milosevic in 2001 and allowed for him to be tried in The Hague for crimes against humanity. (Milosevic died in March 2006 before the completion of his trial.) In 2003, the FRY became Serbia and Montenegro, a loose federation of the two republics with a federal level parliament. In May 2006, Montenegro invoked its right to secede from the federation and - following a successful referendum - it declared itself an independent nation in June 2006.  Though left landlocked after its separation from Montenegro, Serbia has great potential for fast economic development. The country is rich in natural and mineral resources, and agricultural land is fertile and arable. The Serbian economy has undergone significant changes since 2000 as a result of macroeconomic stabilization efforts and structural reforms.