Soldiers conduct mock door exercises at Aviano Air Base in preparation for airborne operation onto Juliet drop zone in Pordenone, Italy, May 22, 2018. The soldiers are paratroopers assigned to the 173rd Brigade Support Battalion, 173rd Airborne Brigade, and the U.S. Army Contingency Response Force in Europe, capable of projecting ready forces anywhere in the U.S., European, Africa or Central Commands' areas of responsibility. Army photo by Davide Dalla Massara