I./KG 100 was dispatched to the Crimea and operated exclusively on the southern sector of the Eastern Front until March 1943. On 26 December 1941, the Red Army landed at Kerch, and on 30 December executed another amphibious landing near Feodosiya with the 44th and 51st armies. The operation was to drive to Sevastopol and relieve the garrison, encircled by the German 11th Army. The ensuing Battle of the Kerch Peninsula lasted until May 1942.