ATSO 2013

U.S Air Force Airman Sean Pozehl, a member of the Nebraska Air National Guard???s 155th Security Forces Squadron, stands guard in a full chemical suit outside a simulated bunker during an Ability to Survive and Operate exercise at the Nebraska National Guard air base in Lincoln, Neb., June 11, 2013. Members of the 155th ARW participated in the ATSO to evaluate and improve their capabilities and skills in a wartime scenario. (U.S. Air National Guard photo by Staff Sgt. James Lieth/Released)

PHOTO BY: Staff Sgt. James Liethreleased
VIRIN: 130611-Z-EV509-058.JPG
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