In the spring of 1992, Bosnians held their own referendum about secession. Even with most of the Serbian population boycotting the vote, the motion to secede still passed. The Serbian siege of the multiethnic Bosnian capital of Sarajevo began almost immediately, and the international press soon provided revelations about Serb concentration camps and campaigns of "ethnic cleansing" (forced expulsions) in the countryside.
In all, at least 150,000-200,000 people are known to have been killed in the Bosnian War before the United States pressured the Serbs, Croats, and Bosnians into signing the Dayton Peace Accord in November 1995.