144th Fighter Wing Surge exercise
U.S. Air Force Tech. Sgt. Jose Mendoza, an aircraft electrical and environmental systems specialist with the144th Aircraft Maintenance Squadron pulls the circuit breakers from the panel of an F-16, after replacing Halon containers during an exercise in Fresno, Calif. on June 4, 2011. The exercise validates a unit’s ability to perform its wartime mission. (U.S. Air Force photo by Tech. Sgt Robin D. Meredith/ released)