Checking Gear Marine Corps Sgt. John Guinta checks his equipment before performing a parachute jump from an CH-47 Chinook helicopter during Exercise Northern Strike 17 over Camp Grayling Joint Maneuver Training Center, Mich., Aug. 2, 2017. Guinta is assigned to Echo Company, 4th Reconnaissance Battalion, 4th Marine Division, Marine Forces Reserve. Marine Corps photo by Lance Cpl. Niles Lee SHARE: Download: Full Size (1.75 MB) Tags: Marines, Northern Command, Soldiers, Army, training, Marine Corps Credit: Lance Cpl. Niles Lee VIRIN: 170802-M-HG783-004A.JPG Photo Gallery