U.S. Soldiers and Airmen, assigned to various units throughout Europe, rappel from a UH-60 Black Hawk during an air assault course at the 7th Army Joint Multinational Training Command's Grafenwoehr Training Area, Germany, June 9, 2015. The course is being conducted through the 7th Army Combined Arms Training Center by a mobile training team from Ft. Bragg and marks the first time the Air Assault Course has been held at the newly-built and renovated air assault facilities of the Grafenwoehr Training Area. (U.S. Army photo by Visual Information Specialist Markus Rauchenberger/released)

U.S. Army paratroopers, assigned to 4th Battalion, 319th Airborne Field Artillery Regiment, 173rd Airborne Brigade, and Moldovan Special Forces Battalion soldiers board a Minnesota Air National Guard C-130 Hercules as part of o multinational airborne training at the 7th Army Joint Multinational Training Command's Grafenwoehr Training Area, Germany, April 10, 2015. 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 Markus Rauchenberger/released)

Soldiers with 3rd Squadron, 2nd Cavalry Regiment parade through Rose Barracks, April 1, 2015 after returning from a deployment in support of Operation Atlantic Resolve. Before reaching their home station, 2nd Cavalry Regiment drove 1,800 km from Estonia through Lithuania, Poland, Latvia, the Czech Republic and finally Germany. The road march was called Dragoon Ride and it exercised the unit’s maintenance and leadership capabilities and demonstrated the freedom of movement that exists within NATO. (U.S. Army photo by Visual Information Specialist Markus Rauchenberger/released)

Soldiers with 3rd Squadron, 2nd Cavalry Regiment parade through Rose Barracks, April 1, 2015 after returning from a deployment in support of Operation Atlantic Resolve. Before reaching their home station, 2nd Cavalry Regiment drove 1,800 km from Estonia through Lithuania, Poland, Latvia, the Czech Republic and finally Germany. The road march was called Dragoon Ride and it exercised the unit’s maintenance and leadership capabilities and demonstrated the freedom of movement that exists within NATO. (U.S. Army photo by Visual Information Specialist Markus Rauchenberger/released)