Sheltered State Air Force Airman 1st Class Justin Goertzen shelters in place during a simulated attack as part of the Bushwhacker 18-02 Cactus Flag exercise at Davis-Monthan Air Force Base, Ariz., Feb. 12, 2018. Air Force photo by Airman 1st Class Frankie D. Moore SHARE: Download: Full Size (2.43 MB) Credit: Airman 1st Class Frankie Moore VIRIN: 180212-F-LD978-013C.JPG Photo Gallery