U.S. Air Force Staff Sgt. Jose Chirino, 62nd Aircraft Maintenance Squadron crew chief, prepares a C-17 Globemaster III for refueling while under simulated chemical, biological, radiological and nuclear conditions during Exercise Rainier War 21B at Joint Base Lewis-McChord, Washington, Nov. 3, 2021. Rainier War 21B exercises and evaluates the wing’s ability to employ the force and their ability to perform during wartime and/or contingency taskings in a high-intensity, wartime contested, degraded and operationally limited environment while supporting the contingency operations against a near-peer adversary in the U.S. Indo-Pacific Command area of responsibility. (U.S. Air Force photo by Senior Airman Christopher Sommers)
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