A U.S. Marine with 2nd Battalion, 7th Marine Regiment, Special Purpose Marine Air Ground Task Force - Crisis Response - Central Command, explains the characteristics of an M240B machine gun to Danish soldiers in the U.S. Central Command area of operations, Jan. 29, 2015. Marines with 2/7 gave Danish soldiers a class on the M240B machine gun to provide a solid foundation for future collaborative efforts and foster camaraderie amongst coalition forces. (U.S. Marine Corps photo by Lance Cpl. Skyler E. Treverrow/Released)