Fueled by ethnic tensions, the Yugoslav Wars (1991–2001) erupted, with the most severe conflicts taking place in Croatia and Bosnia, where the large ethnic Serb communities opposed independence from Yugoslavia. The FRY remained outside the conflicts, but provided logistic, military and financial support to Serb forces in the wars. In response, the UN imposed sanctions against Serbia which led to political isolation and the collapse of the economy (GDP decreased from $24 billion in 1990 to under $10 billion in 1993). Following the rise of nationalism and political tensions after Slobodan Milošević came to power, numerous anti-war movements developed in Serbia and many anti-war protests were held in Belgrade.