Marine Corps and Air Force personnel line up M988 High-Mobility Multipurpose Wheeled Vehicles (HMMWV) in a call forwarding area during a joint Air Force/Marine Corps exercise. Members of the Air Mobile Contingency Force, 2nd Battalion, 9th Marines are working with members of the Air Force's 63rd Military Airlift Wing to airlift Marines and 737 tons of vehicles, supplies and equipment to China Lake Proving Grounds for field maneuvers