Serbia in the Yugoslav Wars from the FRY, as the Bosnian Serb faction alone could not pay for the costs. The Bosnian Serb Army was led by Ratko Mladić, an extremely controversial figure, who served the Yugoslav Army during the Croatian War of Independence 1991-1992, and has been accused of committing war crimes in Bosnia. Serbian Radical Party founder and paramilitary Vojislav Seselj publicly claimed Milošević personally asked him to send paramilitaries from Serbia into Bosnia and Herzegovina. After 1993, media reports of large-scale atrocities by the Bosnian Serb armed forces, such as the long siege of Sarajevo, resulted in increased pressure and sanctions by
Bosnian mujahideen as soon as these arrived in central Bosnia in 1992. Joint combat operations are one illustration of that. In Karaula and Visoko in 1992, at Mount Zmajevac around mid-April 1993 and in the Bila valley in June 1993, the Mujahedin fought alongside ARBiH units against Bosnian Serb and Bosnian Croat forces." However, the ICTY Appeals Chamber in April 2008 concluded that the relationship between the 3rd Corps of the Bosnian Army headed by Hadžihasanović and the El Mudžahid detachment was not one of subordination but was instead close to overt hostility since the only way to control the detachment was