Although initially armed by the Sudanese government in order to fight against South Sudanese separatists, the Army of Peace became especially notorious for massacring Dinka civilians. These mass killings grew so excessive that the group even came into violent conflicts with other pro-government forces. The militia was mostly disbanded in 1988, though a rump faction continued to be active and joined the Popular Defence Forces in 1989, and later the South Sudan Defense Forces (SSDF) in 1997.