Japanese battleship Ise
On 12 April 1922, while at Yokohama, "Ise" hosted a delegation which included the Prince of Wales (the future King Edward VIII), who was accompanied by his second cousin, the future Lord Mountbatten of Burma. Captain Kanna Norikazu relieved Nagasawa on 1 December. The ship aided survivors of the Great Kantō earthquake in September 1923. From the early 1920s through the late 1930s, "Ise" mostly cruised off the coast of China. Little detailed information is available about her activities during the 1920s, although she helped sink the obsolete destroyer during gunnery training on 10 August 1926. The ship was overhauled in 1928–1929, during which her forward superstructure was enlarged and her aviation facilities improved.
USS McKean (DD-784)
A salvage ship, the submarine rescue ship , arrived out of Sasebo on 20 December, to join the five destroyers and three anti-submarine airplanes at the site of the sinking. A hard hat diver was lowered to the scene. In a very short time he returned to the surface with a pair of new binoculars. In addition the Russian submarines had deployed during the depth charge a decoy that made all the sounds of a submarine. This Black Box was so top secret the "Greenlet" immediately returned to Pearl Harbor with it. Rumor has it the "Greenlet" was not allowed to return to the war area because it had retrieved so many Russian secrets. Perhaps it got their code books? Rumor also has it that 43 days later all the B girls knew everything that happened, but the crew couldn't say anything because they had signed the letters of secrecy. The story the crew was told was that it was a "sunken Jap freighter the "Iona Maru". Supposedly the "Iona Maru" capsized on 10 December 1950. The Navy brass had already formatted their cover story with the skipper of the USS "Greenlet". "If those binoculars were from WWII, why wasn't there debris or barnacles, on the item". Recently a former shipmate commented, "We sunk a hulk ship that was doing five knots!".