The
Oberkommando des Heeres (OKH) was the Supreme High Command of the
German Army. It was founded in 1935 as a part of
Adolf Hitler's re-militarisation of the Third Reich. Its commander held the title
Oberbefehlshaber des Heeres, Supreme High Commander of the Heer. From 1938 OKH was together with
OKL Oberkommando der Luftwaffe, Supreme High Command of the Air Force and
OKM Oberkommando der Marine, Supreme High Command of the Navy, formally subordinated to the
OKW Oberkommando der Wehrmacht, Supreme High Command of all Armed Forces (with exception of the
Waffen-SS). During the war OKH had the responsibility of strategic planning of Armies and
Army Groups, while the General Staff of the OKH managed operational matters. Each German Army also had an
Armeeoberkommando, Army Command, or AOK. Until the German defeat at Moscow in December 1941, OKH and its staff was
de facto the most important unit within the German war planning. Later
OKW (
Oberkommando der Wehrmacht, Supreme High Command of the Armed Forces) took over this position.