Paratroopers assigned to Troop B, 5th Squadron, 73rd Cavalry Regiment, 3rd Brigade Combat Team, 82nd Airborne Division, signal that they are prepare to enter a UH-60 Black Hawk helicopter during an Aerial Response Force training event, Feb. 25, at Forward Operating Base Loyalty in eastern Baghdad. The training event allowed paratroopers to practice their air assault procedures in case they are needed for a air assault operation.