U.S. Army Staff Sgt. Keenan M. Kozak, center, listens to questions from German soldiers about the M1126 Stryker combat vehicle during Noble Partner 18 at the Vaziani Training Area, Georgia, Aug.1, 2018. Kozak is a tank commander assigned to Company C, 2nd Squadron, 5th Cavalry Regiment. Army National Guard photo by Staff Sgt. R.J. Lannom Jr.