Mortar Mission Michigan National Guard soldiers hang full range training rounds on the M252A1 81mm mortar system during Northern Strike at Camp Grayling, Mich., Jan. 22, 2024. The exercise prepares service members to operate in cold conditions. SHARE: Download: Full Size (1.91 MB) Tags: National Guard, Michigan, Northern Strike Credit: Air National Guard Master Sgt. Scott Thompson VIRIN: 240122-Z-GS745-2203Y.JPG Photo Gallery