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U.S. Marine Corps photo by Unknown/Released 140406-F-BJ706-548.JPG
Apr 7, 2014
Former Air Force bandsman Robert Sullivan plays the trumpet during a performance by the U.S. Air Force Band at Northwestern University in Evanston, Ill., April 6, 2014. The U.S. Air Force Band commander invited Sullivan, a professor of trumpet at Northwestern University, to be a guest performer during the performance. (U.S. Air Force photo/Master Sgt. Tammie Moore)
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