Chief of Naval Operations (center background) Participates in a question and answer session with U.S. Navy Advisors at the Rach Soi Naval Base, Republic of Vietnam, in May 1971. Photographed by PH1 H.P. Shiplett. Note berets worn by Admiral Zumwalt and many of the others present. Official U.S. Navy Photograph, from the collections of the Naval History and Heritage Command.