UNDER THE BIG SKY U.S. Air Force airmen construct operational tents during an exercise on Andersen Air Force Base, Guam, July 15, 2009. The airmen are assigned to the 36th Medical Group and the 36th Contingency Response Group. The airmen are operating as part of a humanitarian assistance, rapid-response team, which is equipped to function in austere environments during disaster relief operations. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 792990-B-VQE80-522.jpg Photo Gallery