Airmen hold posters depicting principles of the Civil Rights Movement during a Martin Luther King Jr. Day remembrance march at Luke Air Force Base, Arizona, Jan. 12, 2018. Thunderbolts organized the special observance march to take place three days prior to the federal holiday celebrated Jan. 15. ( Air Force photo/Airman 1st Class Caleb Worpel)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1st, airman, caleb, class, worpel