Staff Sgt. Abby Drefke, 185th Air Refueling Wing emergency manager, exits a bus filled with non-lethal chlorobenzalmalononitrile gas, or CS gas, during the Global Dragon deployment for training at the Guardian Center, Perry, Ga., March 12, 2015. CS gas, also known as tear gas, was discovered by Ben Corson and Roger Stoughton in 1928. ( Air National Guard photo by Senior Airman Cody Martin/released) Global Dragon deployment for training 150312-Z-LK614-127

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Size: 1289px × 1940px
Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
Model Released: No

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