Staff Sgt. Greg Thompson, an aircraft mechanic from the Aero Repair Shop, visually inspect the bead area of a C-17 Globemaster III cargo aircraft nose landing gear tires at March Air Reserve Base, Calif., on Feb. 3, 2008. March Air Reserve Base, located in Southern California, is home to the largest air mobility wing in the Air Force Reserve Command. It is also home to units from the Army Reserve, Navy Reserve, Marine Corps Reserve and Air National Guard. (U.S. Air Force photo by Val Gempis)