In 1918, the Kingdom of Serbs, Croats, and Slovenes was formed and was later renamed to Yugoslavia. As Europe descended into alliances for World War II, Yugoslavia was largely able to avoid the Western and Communist alliances. In 1989, Slobodan Milosevic became the President of the Republic of Serbia and Serbian ultra-nationalists began to call for Serbian dominance. This led to Yugoslavia dissolving into several independent countries, although the Republic of Serbia and Montenegro continued to stay in alliance. In 2006, this alliance ended with the two republics becoming individual countries. Currently, Serbia is in the process of joining the European Union.