Airman 1st Class Lance M. Welch, boom operator with the Air Force Reserve Command's 940th Air Refueling Wing, practices air refueling with a KC-10 Extender from the 60th Air Mobility Wing at Travis Air Force Base, Calif., during a training mission Jan. 3, 2007. Training missions ensure citizen warriors of the 940th ARW, Beale AFB, Calif., are ready to answer America's call at any time. (U.S. Air Force photo/Staff Sgt. Luke Johnson)