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
Army of the Republic of Bosnia and Herzegovina Beretke (Green Berets) and Crni Labudovi (Black Swans) units were also active. Other irregular groups included Bosnian mafia groups, as well as collections of police and former Yugoslav People's Army soldiers. The army was formed in poor circumstances, and suffered from a very limited supply of arms. Critical deficiencies included tanks and other heavy weaponry. The first commander of the army was Sefer Halilović. In 1992, the ARBiH was losing most of the battles and consequently 70% of Bosnia was under Yugoslav People's Army (JNA), later Bosnian Serb Army (VRS), control. Sarajevo was under siege. The ARBiH had defended Sarajevo