170403-N-TD563-063 DENVER, Colo. (April 3, 2017) Retired Capt. Thomas G. Kelley, a Medal of Honor recipient, signs a Medal of Honor book for Petty Officer 2nd Class David Zumwalt, assigned to Navy Information Operations Command Colorado. Kelley was awarded the Medal of Honor for valor during the Vietnam War when he disregarded his own safety during a river assault boat mission to extract an Army infantry company and positioned his craft in the path of an incoming rocket. (U.S. Navy photo by Robert Hartland/Released)