The United States Transportation Command (USTRANSCOM) is one of eleven unified commands of the United States Department of Defense. The mission of USTRANSCOM is to provide air, land and sea transportation for the Department of Defense, both in time of peace and time of war. USTRANSCOM, located at Scott Air Force Base Illinois, was established in 1987. The USTRANSCOM commander is Air Force General Jacqueline Van Ovost. Components USTRANSCOM coordinates missions worldwide using both military and commercial transportation resources. It is composed of three service component commands: The Air Force's Air Mobility Command, the Navy's Military Sealift Command and the Army's Surface Deployment and Distribution Command. The Joint Enabling Capabilities Command, which was part of the former U.S. Joint Forces Command, is now part of the U.S. Transportation Command. Air Force: Air Mobility Command (AMC) is also located at Scott AFB. The AMC fleet provides refueling and cargo and personnel transport capability. Aircraft of the command include: C-17 Globemaster III, C-5 Galaxy, C-130 Hercules, KC-135 Stratotanker, and KC-10 Extender. Additional long-range airlift aircraft are available if a U.S. national emergency is declared through the Civil Reserve Air Fleet, a fleet of commercial aircraft committed to support the transportation of U.S. military forces and material in times of crisis. Navy: Military Sealift Command (MSC), USTRANSCOM's sealift component, provides sea transportation worldwide for DoD in peace and wartime. Headquartered in Norfolk, Virginia. MSC uses a mixture of government-owned and commercial ships for three primary functions: surge sealift, principally used to move unit equipment from the United States to theaters of operations all over the world; prepositioned sealift, which comes under USTRANSCOM's command once the ships have been released into the common-user fleet; and sustainment sealift, the lifeline that keeps deployed forces continuously supplied. MSC assets include Fast Sealift and Ready Reserve Force ships. In addition, MSC charters and books space on commercial ships. Army: Military Surface Deployment and Distribution Command (SDDC), located at Scott Air Force Base, Illinois, is the commercial surface lift component and primary surface distribution manager for USTRANSCOM. SDDC provides global surface deployment command and control and distribution operations. SDDC has a presence in 24 water ports worldwide. In an average year, SDDC manages and directs the movement of 3.7 million measurement tons (4.2 million m³) of ocean cargo, 500,000 personal property moves, 600,000 domestic freight shipments, 72,000 privately owned vehicles and 518,000 passengers. SDDC assets include 10,000 containers