U.S. Army paratroopers, assigned to 1st Squadron, 91st Cavalry Regiment, 173rd Airborne Brigade, make adjustments on a M4 carbine while zeroing before qualification, Feb. 18, 2015, at the 7th Army Joint Multinational Training Command's Grafenwoehr Training Area, Germany. The 173rd Airborne is the Army Contingency Response Force in Europe, capable of projecting ready forces to conduct the full of range of military operations across the United States, European, Central and Africa Commands areas of responsibility. (U.S. Army Photo by Visual Information Specialist Markus Rauchenberger/released)