U.S. Marine Sgt. Jeffery Burton, flight line mechanic,

U.S. Marine Sgt. Jeffery Burton, flight line mechanic, Marine Light Attack Helicopter Squadron 369, 3rd Marine Aircraft Wing, observes his surroundings while two Huey helicopters perform a systems check during Integrated Training Exercise 2-16 at Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Jan. 31, 2016. MCAGCC conducts relevant live-fire combined arms, urban operations, and joint/coalition level integration training that promote operational forces' readiness. (U.S. Air Force photo by Senior Airman Steven A. Ortiz/Released)