U.S. Paratroopers assigned to Chaos Battery, 4th Battalion, 319th Airborne Field Artillery Regiment, 173rd Airborne Brigade, work on setting up the M777 Howitzer on the Bunker Drop Zone at the 7th Army Joint Multinational Training Command's Grafenwoehr Training Area, Germany, March 8, 2016. The 173rd Airborne Brigade is the U.S. Army’s Contingency Response Force in Europe, providing rapidly deploying forces to the U.S. Army Europe, Africa and Central Command Areas of Responsibility within 18 hours. The Brigade routinely trains alongside NATO allies and partners to build stronger relationships and strengthen the alliance. (U.S. Army photo by SPC. Elliott Banks/released)