U.S. Marines with 1st Battalion, 8th Marines, demonstrate the operating procedures for the MK19 grenade launcher during Professional Training for midshipmen (PROTRAMID), on Camp Lejeune, N.C., May 27, 2015. The purpose of PROTRAMID is to expose midshipmen to opportunities in the Fleet Marine Forces and generate interest in a Marine Corps commission. (U.S. Marine Corps photo by Cpl. Michael Oxton MCI East-MCB CAMLEJ Combat Camera, Camp Lejeune/Released)