Members of the 171st Air Refueling Wing Medical Squadron, Pennsylvania Air National Guard, complete medical training as part of an Ability To Survive and Operate (ATSO) exercise near Pittsburgh, May 2, 2021. ATSO exercises focus on a unit’s ability to operate during a Chemical, Biological, Radiological or Nuclear (CBRN) event.

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Photo credit: © Operation 2021 / Alamy / Afripics
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Keywords: atso, cbrn