DVIDS - Images - A U.S. Special Operations Forces member dons his protective, respirator mask and chemical resistant suit at a crisis scenario during IS 21 [Image 9 of 12]

A U.S. Special Operations Forces member dons his protective, respirator mask and chemical resistant suit at a crisis scenario during exercise Invincible Sentry, March 23, 2021, near Doha, Qatar. U.S. Central Command’s annual bilateral exercise allows the U.S. and Qatar to work together toward prevailing against complex regional security challenges. (U.S. Army photo by Staff Sgt. Daryl Bradford, Task Force Spartan Public Affairs)

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