The Russian army has set up a deeply echeloned system of engineering barriers in the temporarily occupied territories of Ukraine, consisting of several obstacle courses ranging from 10 to 40 km each.

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 ...

Britt Hertz and her partner face off in a military-style obstacle course.

Parkour, an exercise regimen based on military obstacle course training, has arrived in Brooklyn. And it probably comes as no shock that the first gym to offer it is in Bushwick. Today the Brooklyn ...

Lindsay Truax and Army Reserve Staff Sergeant Anthony Almazan have been together for four years. Sergeant Almazan, who has one daughter of his own, is a father figure to his partner's three kids, and ...