Col. Joshua Wood, 51st Fighter Wing commander, stands with fire fighters assigned to the 51st Civil Engineer Squadron before climbing 110 flights of stairs during a 20th Anniversary 9/11 Remembrance Ceremony at Osan Air Base, Republic of Korea, Sept. 11, 2021. Immediately after the ceremony, 51st CES fire fighters climbed 10 flights of stairs, 11 times in honor of a fallen first responder.

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