Mladic commanded Bosnian Serb forces in the 1990s against the Bosnian Croat and Bosniak (Bosnian Muslim) armies, during a war in which his troops committed “ethnic cleansing” in Bosnia-Herzegovina, besieged the main city of Sarajevo with the deaths of more than 10,000 people, and carried out the massacre of 8,000 men and boys at Srebrenica.