Grinding the sparks, US Air Force Photo

050415-F-1740G-005.ANDERSEN AIR FORCE BASE, Guam (AFPN)- Senior Airman Jeremiah Santos, a metals technology journeyman from the 36th Maintenance Squadron, Andersen Air Force Base, Guam, uses a tungsten inert gas welder to repair a towbar flange during inspection here. Guam, along with Alaska and Hawaii, constitute Pacific Air Force strategic triangle in the Pacific, a wedge from which airpower can be projected across the region in order to demonstrate U.S. commitment to regional security and engagment, assure allies and deter aggression. (U.S. Air Force photo by Master Sgt. Val Gempis)