Secretary of Defense Chuck Hagel announced today that the president has nominated Army Maj. Gen. Kevin W. Mangum for appointment to the rank of lieutenant general and assignment as deputy commanding general/chief of staff, U.S. Army Training and Doctrine Command, Joint Base Langley-Eustis, Va. Mangum is currently serving as the commanding general, U.S. Army Aviation Center of Excellence and Fort Rucker, Fort Rucker, Ala. (Source: DoD, 02/18/14)