KUNSAN AIR BASE, Republic of Korea -- Airmen compete in the "maneuver under fire" portion of the Marine Corps Combat Fitness test here July 1. The "maneuver under fire" section consists of a 300-yard shuttle run that includes a variety of combat-related tasks, including crawls, buddy drags and carries, ammunition resupply, grenade throw and agility running. (U.S. Air Force photo/Senior Airman Brittany Y. Bateman)