The Kingdom of Serbs Croats and Slovenes was formed in 1918; its name was changed to Yugoslavia in 1929. Various paramilitary bands resisted Nazi Germany's occupation and division of Yugoslavia from 1941 to 1945 but fought each other and ethnic opponents as much as the invaders. The military and political movement headed by Josip TITO (Partisans) took full control of Yugoslavia when German and Croatian separatist forces were defeated in 1945. Although Communist TITO's new government and his successors (he died in 1980) managed to steer their own path between the Warsaw Pact nations and the West for the next four and a half decades. 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 and under MILOSEVIC's leadership Serbia led various military campaigns to unite ethnic Serbs in neighboring republics into a "Greater Serbia." These actions led to Yugoslavia being ousted from the UN in 1992 but Serbia continued its - ultimately unsuccessful - campaign until signing the Dayton Peace Accords in 1995. MILOSEVIC kept tight control over Serbia and eventually became president of the FRY in 1997. In 1998 an ethnic Albanian insurgency in the formerly autonomous Serbian province of Kosovo provoked a Serbian counterinsurgency campaign that resulted in massacres and massive expulsions of ethnic Albanians living in Kosovo. The MILOSEVIC government's rejection of a proposed international settlement led to NATO's bombing of Serbia in the spring of 1999 and to the eventual withdrawal of Serbian military and police forces from Kosovo in June 1999. UNSC Resolution 1244 in June 1999 authorized the stationing of a NATO-led force (KFOR) in Kosovo to provide a safe and secure environment for the region's ethnic communities created a UN interim Administration Mission in Kosovo (UNMIK) to foster self-governing institutions and reserved the issue of Kosovo's final status for an unspecified date in the future. In 2001 UNMIK promulgated a constitutional framework that allowed Kosovo to establish institutions of self-government and led to Kosovo's first parliamentary election. 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 2001 the country's suspension from the UN was lifted. In 2003 the FRY became Serbia and Montenegro a loose federation of the two republics with a federal level parliament. Widespread violence predominantly targeting ethnic Serbs in Kosovo in March 2004 caused the international community to open negotiations on the future status of Kosovo in January 2006. In May 2006 Montenegro invoked its right to secede from the federation and - following a successful referendum - it declared itself an independent nation on 3 June 2006. Two days later Serbia declared that it was the successor state to the union of Serbia and Montenegro. A new Serbian constitution was approved in October 2006 and adopted the following month. After 15 months of inconclusive negotiations mediated by the UN and four months of further inconclusive negotiations mediated by the US EU and Russia on 17 February 2008 the UNMIK-administered province of Kosovo declared itself independent of Serbia.
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