U.S. Soldiers of Fox Troop, 2nd Squadron, 2nd Cavalry Regiment attack simulated enemy combatants while conducting a defense operation during exercise Allied Spirit IV at the U.S. Army's Joint Multinational Readiness Center in Hohenfels Training Area, Germany, February 2, 2016. Exercise Allied Spirit IV is a U.S. Army Europe-directed, 7th Army Joint Multinational Training Command-conducted multinational exercise that is designed to prepare forces in Europe to operate together by exercising tactical interoperability and testing secure communications within NATO Alliance members and partner nations. (U.S. Army photo by Pvt. Randy Wren)