ATSO training
Senior Master Sgt. Scott Bunch, 445th Aircraft Maintenance Squadron, leads his team during an Ability to Survive and Operate training exercise as they cover a simulated “critical asset” prior to a suspected chemical attack. (U.S. Air Force photo /Master Sgt. Patrick O’Reilly)

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Photo by: Master Sgt. Patrick O’Reilly |  VIRIN: 171015-F-BT522-0049.JPG