Army Group Courland in the context of "Army Group North"

The Courland Pocket was a pocket located on the Courland Peninsula in Latvia on the Eastern Front of World War II from 9 October 1944 to 10 May 1945.

Army Group North of the Wehrmacht were surrounded in western Latvia by the Red Army after the Baltic Offensive, when forces of the 1st Baltic Front reached the Baltic Sea near Memel (Klaipėda) after the collapse of Army Group Centre during Operation Bagration. Army Group North retreated to the Courland Pocket and was renamed Army Group Courland on 25 January, holding off six Red Army offensives until the German Instrument of Surrender was signed on 8 May 1945. Army Group Courland were in a communication "blackout" and did not get the official order until 10 May, becoming one of the last German groups to surrender in Europe.

Army Group Centre (German: Heeresgruppe Mitte) was the name of two distinct strategic German Army Groups that fought on the Eastern Front in World War II. The first Army Group Centre was created during the planning of Operation Barbarossa, Germany's invasion of the Soviet Union, as one of the three German Army formations assigned to the invasion.

After Army Group North was trapped in the Courland Pocket in mid-1944, it was renamed to Army Group Courland and the first Army Group Centre was renamed "Army Group North". The second iteration of Army Group Centre was formed by the redesignation of Army Group A as the replacement for the first Army Group Centre.