Under its initial name LIV Army Corps, it was active between June 1941 and February 1944.[1] It was renamed Army Detachment Narva (German: Armeeabteilung Narwa) on 2 February 1944.[2] It was again renamed and became Army Detachment Grasser (German: Armeeabteilung Grasser) on 25 September 1944.[3] It was redesignated again in October 1944, becoming Army Detachment Kleffel (German: Armeeabteilung Kleffel).[4]