Retired Lt. Col. Donald Smith waves to friends and family during a ceremony in his honor for Military Appreciation Day in downtown Sturgis, S.D., Aug. 7, 2012. Smith spent 32 years in the Air Force serving as a co-pilot for B-17s and various other aircraft in 34 combat missions during World War II, Vietnam and the Korean War. (U.S. Air Force photo by Airman Ashley J. Cass/Released)