Twilight Training Michigan National Guard Sgt. Damon Adams, Spc. Tyler Doyle and Sgt. Jayce Barr fire an M252A1 81mm mortar system during Northern Strike at Camp Grayling, Mich., Jan. 22, 2024. The exercise prepares service members for a cold weather environment. SHARE: Download: Full Size (1.1 MB) Tags: michigan, northern strike, Michigan national Guard, Army Credit: Air National Guard Master Sgt. Scott Thompson VIRIN: 240122-Z-GS745-2215Y.JPG Photo Gallery