A U.S. Army paratrooper assigned to the 173rd Airborne Brigade assists an Italian Army Folgore Brigade paratrooper in donning his parachute April 13, 2015, at Aviano Air Base, Italy, in preparation for a combined airborne operation. The 173rd Airborne Brigade is the Army Contingency Response Force in Europe, capable of projecting ready forces anywhere in the U.S. European, Africa or Central Commands areas of responsibility within 18 hours. (U.S. Army photo by Visual Information Specialist Paolo Bovo/Released)