Run, run, run
VANDENBERG AIR FORCE BASE, Calif. -- Security forces personnel from the 91st Space Wing, aka "The Roughriders," Minot Air Force Base, N.D. sprint across the line completing the first half of the marksmanship competition for Guardian Challenge here May 4. Guardian Challenge, the world's premier space and missile competition, is a four-day event held annually. It tests the wartime readiness of Air Force Space Command's Airmen in spacelift, ICBM operations, communications, maintenance, helicopter operations, security forces and chef food preparation. (U.S. Air Force photo by Staff Sgt. Jennifer C. Wallis)