(Ret.) Lt. Col. Asa Herring, (Ret.) Tech. Sgt. Rudolf Silas, and (Ret.) Lt. Col. Robert Ashby, three of the original Tuskegee Airmen, render a salute Mar. 23 during the fourth annual Commemoration Day for the Tuskegee Airmen in Arizona at Luke Air Force Base, Ariz. (U.S. Air Force photo by Tech. Sgt. Louis Vega Jr.)