U.S. Marine Corps Lance Cpl. Sam Allison, a cannoneer with Battery A, 1st Battalion, 12th Marine Regiment, pulls the lanyard of an M777 Howitzer during Fire Support Coordination Exercise (FSCEX) during Integrated Training Exercise 2-16 at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Jan. 24, 2016. The battalion participated in FSCEX to enhance their skillset and proficiency pertaining to suppression of enemy air defense and supporting the ground scheme of maneuver. (U.S. Marine Corps photo by Cpl. Trever A. Statz)