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 IMAGE: Download Image: Full Size (1.1 MB) Tags: Army, Michigan National Guard, Michigan, Northern Strike Photo By: Air National Guard Master Sgt. Scott Thompson VIRIN: 240122-Z-GS745-2215Y.JPG Photo Gallery