150501-N-AT895-095 CHATTANOOGA, Tenn. (May 1, 2015) Chief of Naval Operations (CNO) Adm. Jonathan Greenert speaks with World War II veteran Con Crabb during the 66th annual Chattanooga Armed Forces Day parade. Greenert was the reviewing officer for the event. (U.S. Navy photo by Mass Communication Specialist 1st Class Nathan Laird/Released)