U.S. Marines with Alpha Company, 1st Battalion, 8th Marine Regiment, 2nd Marine Division (MARDIV), conduct a casualty evacuation drill during a two kilometer hike while participating in a Deployment for Training exercise on Marine Corps Base Quantico, Va., Feb. 18, 2015. The exercise focused on stability operations and various training missions. (U.S. Marine Corps photo by Lance Cpl. Kelly L. Street, 2D MARDIV Combat Camera/Released)