Crew Work Air Force airmen monitor battlespace movements at a simulated austere base during the Advanced Battle Management System exercise at Nellis Air Force Base, Nev., Sept. 3, 2020. SHARE IMAGE: Download Image: Full Size (1.65 MB) Photo By: Air Force Tech. Sgt. Cory D. Payne VIRIN: 200901-F-WJ663-0302M.JPG Photo Gallery