Troopers assigned to 4th Squadron, 2nd Cavalry Regiment, operate their M1126 Stryker Combat Vehicles during Dragoon Crossing, a tactical road march starting out at Rose Barracks, Germany and continuing through the Czech Republic and the Slovak Republic ending in Hungary Sept. 13, 2015. The purpose of the exercise is to reassure NATO allies of the U.S. intent during Operation Atlantic Resolve while demonstrating interoperability and freedom of movement throughout Eastern Europe. (U.S. Army photo by Sgt. William A. Tanner/released)