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U.S. Air Force firefighters enter a building during a controlled fire exercise at Ramstein Air Base, Germany on Mar. 19, 2015.
USAF firefighters from the 48th, 52nd and 86th Civil Engineering Squadrons trained with one another during multiple firefighting exercises held by the 435th Construction and Training Squadron. (DoD News photo by SSgt Brian Kimball). Original public domain image from Flickr
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