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
Alfred Gruenther of Staff in 1947-1949. In 1949, he was promoted to the rank of lieutenant general and served as the U.S. Army's deputy chief of staff for plans and operations. In 1951, Gruenther was promoted to four-star general and appointed as the Chief of Staff, Supreme Headquarters Allied Powers Europe (COFS SHAPE) under Gen. Eisenhower, who became the Supreme Allied Commander Europe (SACEUR). He continued to serve under Gen. Matthew Ridgway and later replaced him as SACEUR. From 11 July 1953 to 20 November 1956, he was Supreme Allied Commander, Europe/Commander in Chief, U.S. European Command (SACEUR/USCINCEUR). On December 31, 1956,