Airmen from the 366th Civil Engineer Squadron learn how to use Joint Chemical Agent Detectors during the Base Emergency Egineer Force training, Jan. 23, 2020, at Mountain Home Air Force Base, Idaho. JCAD systems are capable of detecting chemical vapor elements. ( Air Force photo by Senior Airman Tyrell Hall)

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Photo credit: © Operation 2021 / Alamy / Afripics
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