Battle Group Poland Polish solders practice air maneuvers during Saber Strike 2017, at the Bemowo Piskie Training Area near Orzysz, Poland, June 14, 2017. Saber Strike 17 is a U.S. Army Europe-led multinational combined forces exercise conducted annually to enhance the NATO alliance throughout the Baltic region and Poland. This year's exercise includes integrated and synchronized deterrence-oriented training designed to improve interoperability and readiness of the 20 participating nations' militaries. (U.S. Army photo by Spc. Stefan English)