Marine Corps Lance Cpl. Corey Arensen maneuvers through a mud pit during the endurance course at the Jungle Warfare Training Center in Okinawa, Japan, Jan. 15, 2018. Arensen is a machine gunner with India Company, 3rd Battalion, 3rd Marine Regiment
Department of Defense photo by U.S. Air Force Tech. Sgt. Michael R. Holzworth.
Tripler Army Medical Center promotes Traumatic Brain Injury Awareness Month