Now Boarding...
Marines with Co. E, 2nd battalion, 4th Marines, 5th Marine Regiment board a CH-53 helicopter for extraction after multiple patrols throughout the Mountain Warfare Training Center's training area, June 21, 2014. Marines participated in night movements and patrols through the morning of their extraction day.
(U.S. Marine Corps photo by Cpl. Charles Santamaria/Released). Original public domain image from Flickr