Nyorai kupfuurira kweiyi ndima - Pana 08:20 pana 30 August 1945, "I-400" yakavamba kufamba mukambani ne"I-14" uye "Proteus" yakananga kuTokyo Bay, uko yakasvika pa 14:58 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 dzeU.S. Navy gumi nembiri dzakasarudzwa kumiririra U.S. Navy Submarine Force pamhemberero yokuzvipira kweJapan
muTokyo Baywo akasungwa ipapo, uye "I-401" yakasvika musi waAugust 31 zvakare. 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".