2nd Lt. Charles O’Donnell, platoon commander, 2nd battalion, 4th Marines, 5th Marine Regiment, watches and communicates with Marines as two squads with Co. E traverse a gorge in the Mountain Warfare Training Center’s training area during a combat patrol, June 20, 2014. The E Co. squads went through several combat patrols throughout the night before they were extracted at the end of Mountain Training Exercise 3-14.