U.S. Marines with bravo battery, 1st Battalion, 12th Marines (1/12), fire the M777A2 Howitzer during a live fire operation aboard Camp Pohakuloa, Hawaii, Jan. 19th, 2014. The Marines with 1/12 are enhancing their skills providing indirect combat support for ground units in support of operation Lava Viper. (U.S. Marine Corps photo by Lance Cpl. Aaron S. Patterson/Released)