The IJN I-400 Class submarine completed up being the absolute most submarine in WW ? combined with biggest in the world at the growth of nuclear submarines in 1960s.I-400 had sufficient gas to bypass the earth one . 5 times and may even carry 3 Aichi M 6A 1�Seiran� aircraft that may be assembled for journey within minutes. One among their missions, that is don't ever finished, reportedly must be to work with aircraft to drop bacteriological bombs on U.S. metropolitan centers. Even so the bacteriological bombs cannot prepare after a while .Later, a mission is always to bomb the Panama Canal to slice the supply lines of Allied forces but canceled finally. The I-400 and I-401 have now been captured at ocean weekly after Japanese surrendered in 1945.
