U.S. Marines, foreground, observe the Norwegian coastal ranger commandos as they conduct a live-fire range and patrol during Exercise Platinum Ren at Fort Trondennes, Harstad, Norway, May 11, 2018. The Marines are assigned to 1st Reconnaissance Battalion, 1st Marine Division. The exercise is a theater security cooperation training evolution with Norwegian commandos to sustain mission essential tasks in a harsh operating environment and strengthen coalition partnerships. Marine Corps photo by Cpl. Miguel A. Rosales