Snowy Security Marine Corps Capt. Andrew Piech provides security during close air support integration training at Camp Grayling, Mich., Jan. 26, 2021, as part of Northern Strike, a National Guard Bureau-sponsored exercise. SHARE: Download: Full Size (0.62 MB) Tags: Marine Corps, Training, Northern Strike Credit: Marine Corps Lance Cpl. Yvonna Guyette VIRIN: 210126-M-VQ041-1049C.JPG Photo Gallery