Bosnian War commander Blaž Kraljević and incorporated into the HVO and ARBiH. The Army of Republika Srpska ("", VRS) was established on 12 May 1992. It was loyal to Republika Srpska, a Serb breakaway state that sought unification with FR Yugoslavia. Serbia provided logistical support, money and supplies to the VRS. Bosnian Serbs had made up a substantial part of the JNA officer corps. Milošević relied on the Bosnian Serbs to win the war themselves. Most of the command chain, weaponry, and higher-ranked military personnel, including General Ratko Mladić, were JNA. Various paramilitary units were operated during the Bosnian War: the Serb
Bosnian War still controlled Orašje. ARBiH suffered heavy losses. On 21 June 1992, Bosniak forces entered the Bosnian Serb village of Ratkovići near Srebrenica and murdered 24 Serb civilians. In June 1992, the UNPROFOR, originally deployed in Croatia, had its mandate extended into Bosnia and Herzegovina, initially to protect the Sarajevo International Airport. In September, the role of UNPROFOR was expanded to protect humanitarian aid and assist relief delivery in the whole Bosnia and Herzegovina, as well as to help protect civilian refugees when required by the Red Cross. On 4 August 1992, the IV Knight Motorised Brigade of the ARBiH attempted