A Air Force firefighter from the 8th Civil Engineer Squadron kneels on the ground after finishing a memorial stair climb at Kunsan Air Base, Republic of Korea, Sept. 12, 2016. The 9/11 memorial stair climb event is a tribute to the 343 firefighters who gave their lives during the tragic events at the World Trade Center on September 11, 2001. ( Air Force photo by Senior Airman Colville McFee/Released)

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Size: 2027px × 1199px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

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