A member of the Spanish air force with the 311th Airlift Wing, 31st Wing, Zaragoza Air Base, Spain, performs a check on his oxygen mask at Joint Base Lewis-McChord, Wash., July 22, 2011. The Spanish airman was practicing for Air Mobility Rodeo 2011. The Air Mobility Rodeo is the Air Mobility Commands biennial readiness competition. It focuses on improving the professional core abilities of air mobility forces from the U.S. Air Force and Air Force Reserve as well as allied nations.