A Marine with Alpha Company, 2nd Assault Amphibian Battalion, awaits the order to lock down the hatches as the unit prepares to conduct company-level beach operations on Camp Lejeune, North Carolina, Dec. 5, 2015. During this exercise the unit conducted maneuvers as a mechanized infantry company in preparation for upcoming operations. (U.S. Marine Corps photo by Lance Cpl. Brianna Gaudi)