Michigan Maneuver Army infantrymen maneuver during a Northern Strike 17 field training exercise at Camp Grayling Joint Maneuver Training Center, Mich., Aug. 1, 2017. Army, Air Force, Marine Corps and special operations members from 20 states are participating in Northern Strike 17, a National Guard Bureau-sponsored exercise. Michigan National Guard photo by Sgt. Seth LaCount SHARE: Download: Full Size (0.72 MB) Credit: Sgt. Seth LaCount VIRIN: 170801-Z-SR689-006C.JPG Photo Gallery