734th Air Mobility Squadron passenger service agent Senior Airman Tomas Cubilla operates a passenger bus April 16, 2014, during an operational readiness exercise on Andersen Air Force Base, Guam. The 36th Wing exercises regularly to ensure Airmen and the base populace are trained and ready to respond quickly and accurately in the event of a crisis. (U.S. Air Force photo by Airman 1st Class Emily A. Bradley/Released)