Track chart of the action involving USS Maddox (DD-731) and USS Turner Joy (DD-951) on the night of 4 August 1964, during the second part of the Gulf of Tonkin incident. Many of the observations reflected in this chart were later determined to be inaccurate. Chart prepared for "The United States Navy and the Vietnam Conflict", Volume II, page 430. U.S. Naval Historical Center Photograph.