Comments by "John Fisher" (@johnfisher9692) on "I-400 - Guide 238" video.

You'd have thought the Japanese would have learned from earlier French and British efforts about the problems of excessively large submarines. While the previously mentioned navy's used guns, the Japanese decided that submarine carriers were the way forward.
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Is there any information on what British battleship designers were doing during WW1. Although all construction was halted on the outbreak of war, i feel that they would have been working on improved designs (even if they couldn't be built) much like the Germans were,
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