The Bosnian war was fought because Serbs and Croats living in Bosnia wanted to annex Bosnian territory for Serbia and Croatia In 1992, Bosnian Serbs began "cleansing" large areas of Bosnia of non-Serbs. There more reasons than just ethnic tensions. After the war, a tribunal declared that the "cleansing" was actually genocide and convicted the current leader of the time, and his military commander of war crimes. On April 6, 1992, the Bosnian Serbs began their siege of Sarajevo. Muslim, Croat, and Serb residents opposed to a Greater Serbia were cut off from food, utilities, and communication.
Radovan Karadzic, one of the Bosnian Serb leaders was captured two years ago after being on the run for 13 years. Many officers were accused and sent to trial.