U.S. Air Force Staff Sgt. Jose Chirino, 62nd Aircraft Maintenance Squadron crew chief, attaches fuel hose for refueling to a C-17 Globemaster III while under simulated chemical, biological, radiological and nuclear conditions during Exercise Rainier War 21B at Joint Base Lewis-McChord, Washington, Nov. 3, 2021. The exercise is designed to demonstrate the wing’s ability to operate and survive while defeating challenges to the U.S. military advantage in all operating domains – air, land, sea and cyberspace. (U.S. Air Force photo by Senior Airman Christopher Sommers)
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