Staff Sgt. Luke Masterson, a 314th Aircraft Maintenance Squadron crew chief, checks the serviceability of a fire extinguisher on a C-130 Hercules during a pre-flight inspection July 18, 2011, at Little Rock Air Force Base, Ark. The effort was in preparation for Air Mobility Rodeo 2011 at Joint Base Lewis-McChord, Wash. More than 150 teams and 3,000 people from the Air Force, and Air Force Reserve, as well as allied nations, are expected to participate in Rodeo 2011. (U.S. Air Force Photo/Airman 1st Class Rusty Frank)