Pedzisa mutsara unotevera: Na8: 20 musi wa30 August 1945, "I-400" yakatanga kufamba ichiperekedzwa ne"I-14" ne"Proteus" yakananga kuTokyo Bay, kwavakaisa chikepe pa14: 58 zuva rimwe chetero. Mureza weUnited States wakasimudzwa uri mungarava yake na5: 00 musi wa31 Nyamavhuvhu 1945, uye na14: 45 "I-400", "I-14", uye "Proteus" vakatanga kufamba kuenda kunzvimbo nyowani yekumhara mukati me breakwater panzvimbo yezvikepe zvepasi pegungwa paYokosuka, uko "Proteus" yakasungwa na16: 50. Ngarava dzepasi pemvura gumi nembiri dzeU.S. Navy dzakasarudzwa kumiririra U.S. Navy Submarine Force pa
Mhemberero yokuzviisa pasi kweJapan muTokyo Bay yakasungirirwawo ikoko, uye "I-401" yakasvikawo pana August 31. Munguva yekubvuma kukundwa musi wa 2 Gunyana 1945, Mutungamiri, Submarine Force, U.S. Pacific Fleet (COMSUBPAC), Mutevedzeri weAdmiral Charles A. Lockwood, akarayira mureza wake pachake wakasimudzwa pa "I-400" uye "I-401".