Marines with Communications Company, Headquarters Regiment, 3rd Marine Logistics Group, slide a simulated victim down a hill at the Endurance Course on Camp Gonsalves, Okinawa, Japan, Feb. 16, 2018. The E-Course is the culminating event in the Basic Jungle Skills Course, consisting of obstacles scattered through the hill-riddled jungle. BJSC is designed to teach Marines how to operate in a jungle environment. (U.S. Marine Corps photo by Lance Cpl. Jamin M. Powell) - Marines with Communications Company, Headquarters Regiment, 3rd Marine Logistics Group, slide a simulated victim down a hill at the Endurance Course on Camp Gonsalves, Okinawa, Japan, Feb. 16, 2018. The E-Course is the culminating event in the Basic Jungle Skills Course, consisting of obstacles scattered through the hill-riddled jungle. BJSC is designed to teach Marines how to operate in a jungle environment. (U.S. Marine Corps photo by Lance Cpl. Jamin M. Powell)