One of the two strategic commanders for NATO and the commanding officer of Allied Command Operations (ACO). The current SACEUR is General Tod D. Wolters. The SACEUR is responsible to NATO's Military Committee, the highest military authority in NATO, for the overall direction and conduct of military operations for NATO. SACEUR, a United States Flag or General officer, leads all NATO military operations and is dual-hatted as Commander US European Command. His command is exercised from the Supreme Headquarters Allied Powers Europe (SHAPE) at Casteau, Mons, Belgium.