Staff Sgt. Thinh Tran, 104th Emergency Management journeyman, explains Mission Oriented Protective Posture Gear zone transitions during a Chemical, Biological, Radiological, and Nuclear exercise Feb. 2, 2020, at Barnes Air National Guard Base, Massachusetts. The CBRN training gets Airmen comfortable with putting on their MOPP gear and effectively performing their jobs with reduced dexterity. ( Air National Guard photo by Airman 1st Class Sara Kolinski)

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Photo credit: © Operation 2021 / Alamy / Afripics
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