NATO Allied Command Operations

NATO Allied Command Operations (ACO) is the main military command responsible for overseeing NATO's collective defense and peacekeeping missions worldwide. It coordinates and directs member countries’ military forces to ensure security, respond to crises, and carry out operations such as training, patrols, or humanitarian efforts. ACO ensures that NATO members work together effectively, sharing resources and strategies, to maintain stability and defend collective interests. Headquartered in Mons, Belgium, it acts as the operational nerve center that plans, executes, and manages NATO’s military activities globally.