The 512th Airlift Wing, Dover Air Force Base, Del., plays an important role in America's defense. Also known as the "Liberty Wing," the 512th AW is a subordinate of 4th Air Force headquartered at March Air Reserve Base, Calif., and Air Force Reserve Command, with it's headquarters at Robins Air Reserve Base, Ga. The Liberty Wing consists of operations, maintenance and support groups, a medical squadron, and 14 units. In addition, there are two geographically separated units at Langley Air Force Base, Va.