Marines assigned to Marine Rotational Force Europe 17.1 fire an M240B medium machine gun during a live-fire range near Stjørdal, Norway, June 9, 2017. Before setting in on the firing line, Marines completed physical fitness exercises to simulate the physical fatigue felt in combat. The infantry Marines cross-trained on the M240B to gain a basic understanding of the weapon should they ever need to employ one themselves. Marine Corps photo by Cpl. Victoria Ross