U.S. Marines with India Battery, Battalion Landing Team 3rd Battalion, 1st Marine Regiment, 15th Marine Expeditionary Unit, fire an M777A2 Lightweight Howitzer during MEU Exercise 14 aboard Camp Pendleton, Calif., Nov. 17, 2014. The purpose of MEUEX is to train the different elements of the 15th MEU to work together to complete various missions. (U.S. Marine Corps photo by Sgt. Jamean R. Berry/Released)