Supreme Headquarters Allied Powers Europe Command Operations has at its disposal standing forces such as: Airlift support for SACEUR's travels is provided by the USAF's 309th Airlift Squadron at Chièvres Air Base, Belgium. In 2012 and 2013, NATO underwent a reorganization of the military command, and the land component commands at Heidelberg and Madrid were deactivated, the maritime component command at Naples was closed and the air component command at Izmir also shut down. Today Allied Command Operations (ACO) is one of the two strategic commands of NATO (the other being Allied Command Transformation (ACT). Under this structure, there are two joint force operational headquarters
CENTAG wartime structure in 1989 command of Supreme Headquarters Allied Powers Europe (SHAPE), which would employ the three corps' of First Army as needed. Three armored divisions of the First Army were based within Germany and held yearly maneuvers with their allies to train for the moment French units would be committed to CENTAG (see also: Structure of the French Army in 1989). The complete wartime structure of CENTAG in the fall of 1989 at the end of the Cold War follows below: The 56th Field Artillery Command was organized to always report directly to the highest commander in Europe at the time. Therefore, during