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.