Allied Command Operations
Allied Command Operations (ACO) is responsible for the planning and execution of all Alliance operations. ACO is a three-tier command with headquarters and supporting elements at the strategic, operational and tactical level. It exercises command and control of static and deployable headquarters, as well as joint and combined forces across the full range of the Alliance’s military missions. ACO identifies training requirements and supports NSO with subject matter experts to ensure training is in accordance with NATO standards and doctrine.