Lt. Col. Michael Tyynismaa, 23rd Training Squadron commander, at Officer Training School, presents a certificate to 1st Lt. Christopher Hendricks commemorating him as the 20,000th graduate from the Commissioned Officer Training program during the awards ceremony for COT class 12-01 at the Boyd auditorium on Officer Training School campus on Nov. 17, 2011. (U.S. Air Force photo by Melanie Rodgers Cox)
Melanie Cox
Taken on 17 November 2011
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