U.S. Marine Corps Lance Cpl. Nathaniel W. O'Connor,

U.S. Marine Corps Lance Cpl. Nathaniel W. O'Connor, a squad leader with Black Sea Rotational Force, shows a local girl a M240B machine gun mounted on a turret of a Humvee during Scoala Altfel, children's field week, aboard Mihail Kognalniceanu Air Base, Romania, April 19, 2016. U.S. Marine Corps, U.S. Army and Romanian Forces spent the afternoon sharing their jobs in the military and gave the children a chance to experience different aspects of the military. (U.S. Marine Corps photo by Cpl. Kelly L. Street, 2D MARDIV COMCAM/Released)