The Dalj massacre was the killing of 56 or 57 Croats in Dalj, Croatia on 1 August 1991, during the Croatian War of Independence. In addition to civilian victims, the figure includes 20 Croatian policemen, 15 Croatian National Guard (Zbor narodne garde – ZNG) troops and four civil defencemen who had been defending the police station and water supply building in the village. While some of the policemen and the ZNG troops died in combat, those who surrendered were killed after they became prisoners of war. They tried to fight off an attack by the Croatian Serb SAO Eastern Slavonia, Baranja and Western Syrmia (SAO SBWS) Territorial Defence Forces, supported by the Yugoslav People's Army (Jugoslovenska Narodna Armija – JNA) and the Serb Volunteer Guard paramilitaries.