Recruits with Kilo Company, 3rd Recruit Training Battalion, take on the obstacle course Tuesday on Marine Corps Recruit Depot Parris Island, S.C. The O-course is one of many physical training ...

U.S. Marine Corps Lance Cpl. John Cisneros, a rifleman with Golf Company, 2nd Battalion, 5th Marine Regiment (Reinforced), Marine Rotational Force – Darwin 24.3, crawls through a tunnel as a part of ...

Katelyn Ohashi takes on the challenge of running through a military obstacle course. Katelyn is a former UCLA gymnast and National Team member. This course is used for physical training by U.S Marines ...

What happens when a world-class gymnast takes on a brutal US Marine obstacle course? We brought in Katelyn Ohashi, former UCLA gymnast and viral floor routine sensation, to see how her gymnastics ...