Under the Globemaster Paratroopers board an Air Force C-17 Globemaster III aircraft before participating in air transportability training at Joint Base Elmendorf-Richardson, Alaska, May 19, 2016. The aircraft crew is assigned to the 517th Airlift Squadron. Air Force photo by Alejandro Pena SHARE IMAGE: Download Image: Full Size (1.56 MB) Photo By: Alejandro Pena VIRIN: 160519-F-YH552-013C.JPG Photo Gallery