The Capture of Banja Koviljača (1–6 September 1941) was a long battle fought by allied forces of Chetnik Detachments of the Yugoslav Army (Chetniks) with Yugoslav Partisans against German forces. On 1 September 1941, the allies attacked German soldiers who were garrisoned in an outpost at Banja Koviljača. This was the beginning of the hostilities of the April war. The Battle of Koviljača reflected skillful command by leaders of the uprising in Serbia.