At a ceremony to honor Vietnam veterans, service members and their families observe a Vietnam Memorial Monument on board Naval Amphibious Base Coronado. The ceremony was held to honor Navy and Coast Guard personnel who lost their lives during the Vietnam War. U.S. By Journalist 3rd Class Cynthia R. SAN DIEGO (NNS) -- A monument dedicated to Navy and Coast Guard veterans who fought and died supporting brown water and other naval operations in Vietnam was unveiled May 21 at Naval Amphibious Base Coronado. More than 700 people attended the unveiling of the 66 feet-long and 8 feet-tall monument, which displayed 26 panels listing the names, ranks, hometowns, units and dates of death of all the veterans who took part in brown water operations in Vietnam from 1960 to 1975.