M577 Armored Command Vehicles from the 2nd Armored Brigade Combat Team, 1st Infantry Division, out of Fort Riley, Kan., are driven on to train cars at the port of Gdansk, Poland, Sept. 14, 2017. The brigade was replacing the 3rd Armored Brigade Combat Team, 4th Infantry Division, which will return to Fort Carson, Colo., after supporting Atlantic Resolve for nine months. Army photo by Sgt. 1st Class Jacob A. McDonald