U.S. Marine Cpl. Phil Bahr, Marine Helicopter Light

U.S. Marine Cpl. Phil Bahr, Marine Helicopter Light Attack Squadron 773 Detachment A crew chief, based at Naval Air Station Joint Reserve Base New Orleans, lubricates an M240G machine gun bolt carrier group prior to close air support training during Exercise Southern Strike 15 (SS15) at Naval Air Station Joint Reserve Base New Orleans, La., Nov. 6, 2014. SS15 is a total force, multiservice training exercise hosted by the Mississippi National Guard's Combat Readiness Training Center from Oct. 27 through Nov. 7, 2014. The SS15 exercise emphasizes air-to-air, air-to-ground and special operations forces training opportunities. These events are integrated into demanding hostile and asymmetric scenarios with actions from specialized ground forces and combat and mobility air forces. (U.S. Air Force photo by Tech. Sgt. Barry Loo/Released)