Sergeant Chad Walker, a Joint Tactical Air Controller from the Y Battery, 2nd Royal Canadian Horse Artillery, Petewawa, Ontario, radios to a CH-47 Chinook Helicopter from the Illinois Army National Guard 2nd Battalion, 238th General Support Aviation Battalion, Peoria, Ill., to land for troop pickup during Operation Northern Strike 2014 near Rogers City, Mich., Aug. 4, 2014. Operation Northern Strike 2014 is a joint multi-national combined arms training exercise conducted in Michigan. (U.S. Air National Guard photo by Master Sgt. Scott Thompson/released)
Master Sgt. Scott Thompson
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