Rocket Fire Marines fire a High Mobility Artillery Rocket System at Chocolate Mountain Aerial Gunnery Range, Calif., Dec. 9, 2020, during Steel Knight/Dawn Blitz. The exercise ensures the 1st Marine Division remains lethal, combat-ready, interoperable and deployable on short notice. SHARE: Download: Full Size (0.43 MB) Tags: Marine Corps, Training, Steel Knight, Dawn Blitz Credit: Marine Corps Sgt. Miguel Rosales VIRIN: 201209-M-WQ429-1011C.JPG Photo Gallery