The Croatian Defence Forces (, HOS) were the military arm of the Croatian Party of Rights (HSP) from 1991 to 1992, during the first stages of the Yugoslav wars. During the Croatian War of Independence, the HOS organized several early companies and participated in Croatia's defense. At the peak of the war in Croatia, the HOS was several battalions in size. The first HOS units were headed by Ante Paradžik, an HSP member who was killed by Croatian police in September 1991. After the November 1991 general mobilization in Croatia and the January 1992 cease-fire, the HOS was absorbed by the Croatian Army.