Night Training Marines and Army National Guardsmen prepare for nighttime close air support integration training at Camp Grayling, Mich., Jan. 26, 2021, during Northern Strike, a National Guard Bureau-sponsored exercise. SHARE IMAGE: Download Image: Full Size (0.39 MB) Tags: Marine Corps, Training, National Guard, Northern Strike Photo By: Marine Corps Sgt. Shaehmus Sawyer VIRIN: 210126-M-EI745-1264C.JPG Photo Gallery