Airmen from the 380th Civil Engineer Squadron fire department extinguish a simulated fire from a fuel tank explosion during an exercise July 15, 2011, in Southwest Asia. These Airmen were called “on scene” by Soldiers from the 3rd Battalion, 4th Air Defense Artillery Regiment. The service members joined forces to learn how to work together effectively during an emergency situation. (U.S. Air Force photo/Staff Sgt. Patrick Mitchell)