(Right) U.S. Air Force Chief of Staff Gen. David Goldfein watches a demo during the ATLANTIC TRIDENT 17 World War I Remembrance Day at Joint Base Langley-Eustis, Va., April 21, 2017. This year marks the 100th anniversary of the U.S. Air Force’s participation alongside the French air force and Royal air force during World War I. (U.S. Air Force photo/Staff Sgt. Areca T. Bell)
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