Battle Group Poland U.S. Solders prepare to fire rounds out of the M777 Howitzer to practice fire missions during Saber Strike 2017, at Bemowo Piskie Training Area near Orzysz, Poland, June 16, 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)