The United Nations Space Command was the armed force of the Unified Earth Government, and consisted of the UNSC Navy, UNSC Army, UNSC Marine Corps and UNSC Defence Intelligence. The uniformed services of the UNSC were responsible for defending the territorial integrity of the UEG, maintaining peace and order through armed presence, deterring and dealing with internal and external armed threats and otherwise supporting the UEG. With the exception a long period during the Human-Covenant War, the UNSC was civilian-controlled, and acted to further aims dictated by civilian governance in areas such as foreign policy. This was handled by the civilian Ministry of Defence, headed by the Secretary of Defence, although ultimate authority lay with the UEG President. Military command was the responsib