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Brig. Gen. Warren Hurst (left), Kentucky's assistant adjutant general for Air, presents the certificate of retirement to Col. Nicholas Coleman during Coleman’s retirement ceremony at the Kentucky Air National Guard Base in Louisville, Ky., Sept. 15, 2018. Coleman’s career spanned more than 30 years in both the active-duty Air Force and Kentucky Air National Guard. (U.S. Air National Guard photo by Master Sgt. Vicky Spesard)