Chinook Landing A CH-47 Chinook helicopter prepares to land before participating in a joint service exercise at Buckley Air Force Base, Colo., Aug. 16, 2017. A simulated helicopter crash tested responses from numerous agencies across base, including first responders, the decontamination team and support agencies. The exercise runs through Aug. 18. Air Force photo by Airman 1st Class Gabrielle Spradling SHARE: Download: Full Size (1.73 MB) Tags: Guard, Air Force, Northcom, Northern Command, training, Airmen Credit: Airman 1st Class Gabrielle Sprad VIRIN: 170816-F-RN654-0001A.JPG Photo Gallery