U.S. Army paratroopers assigned to Dog Company, 1st Battalion, 503rd Infantry Regiment, 173rd Airborne Brigade engage targets during a combined defensive live-fire exercise March 6, 2015, at the 7th Army Joint Multinational Training Command in Grafenwoehr, Germany. Paratroopers from the 173rd Airborne Brigade and Dutch sappers from the 411th Armored Engineers of the Royal Dutch Army participated in the combined defensive exercise to promote interoperability and strengthen the NATO alliance. (U.S. Army Photo by Visual Information Specialist Markus Rauchenberger/released)