Osan honors 9/11 first responders
A U.S. Air Force firefighter with the 51st Civil Engineer Squadron walks up a flight of stairs during a 9/11 memorial stair climb at Seoraksan Tower on Osan Air Base, Republic of Korea, Sept. 11, 2018. Participants climbed the tower’s eight stories 16 times, totaling up to 112 flights overall. (U.S. Air Force photo by Senior Airman Kelsey Tucker)

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Photo by: Senior Airman Kelsey Tucker |  VIRIN: 180911-F-DV125-1252.JPG