Tech. Sgt. Antonio Adolphues of the Georgia Air National Guard's 116th Civil Engineering Squadron, headquartered at Robins Air Force Base, use an auto level to take measurements during a construction project at St. Michaels Association for Special Education, Window Rock, Ariz., June 9, 2011. Adolphues and more than 40 members of his squadron performed work for the Navajo Nation as a part of the Department of Defense Innovative Readiness Training program.
(U.S. Air Force photo by Master Sgt. Roger Parsons/Released)