Oposing Force
Senior Airman Courtney McClellan, 51st Security Forces Squadron base pass technician, engages members of the 51st Fighter Wing during an attack hill 180 Sep. 01, 2011 during exercise Beverly-Midnight 11-04. Exercises such as this test Osan's ability to survive and operate during a war-time constraint. (U.S. Air Force photo/Senior Airman Adam Grant)