Sgt. Eric Cherney, vehicle commander assigned to the 1st Squadron, 2nd Cavalry Regiment, maintains an Interim Armored Vehicle "Stryker” with another soldier during exercise Puma 2 Operation with Battle Group Poland in the midst of Saber Strike 18 at Bemowo Piskie Training Area, Poland, June 13, 2018. Army photo by Spc. Hubert D. Delany III