The HOS units in Bosnia and Herzegovina consisted of Croats, Bosniaks and foreign volunteers led by Blaž Kraljević.[4] On 9 August 1992, Kraljević and eight staff members were assassinated by Croatian Defence Council (HVO) soldiers under the command of Mladen Naletilić.[5] The HOS was disbanded shortly afterwards, and absorbed by the HVO and the Army of the Republic of Bosnia and Herzegovina at the beginning of the Croat-Bosniak War.[4] The last HOS unit was dissolved on 5 April 1993 in central Bosnia.[6]