U.S. Marine Sgt. Joseph Walkerstill, a Weapons and Tactics Instructor with Marine Medium Tiltrotor Squadron-165 (VMM-165), Special Purpose Marine Air-Ground Task Force—Crisis Response—Central Command, fires an M240 machine gun during Aerial Gunnery Training aboard an MV-22 in an Southwest Asia, July 15, 2015. The Marines of VMM – 165 celebrate the unit’s 50th anniversary while deployed with the SPMAGTF; providing long range assault support, troop transport and cargo delivery in the Central Command Area of Operations, as well as support to the Tactical Recovery of Aircraft and Personnel. (U.S. Marine Corps Photo by Cpl. Leah Agler)