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WW1 Submarines: What Were They Used For And Do Any Still Exist?
Submarines made up relatively small portions of each combatant's total fleet during WWI, but that didn't make them any less useful or deadly. Initially, nations followed the naval tradition of ...
PBS10y
400 Years of Subs
As one of the World War I allies, Japan received seven of the surrendered U-boats but went a bit beyond mere 'examination.' Japan imported some 800 German technicians, engineers, and naval ...