UB-II class submersibles
Por um escritor misterioso
Descrição
UB-2 class (1915-18) German Empire – 30 submarines, UB-18 to UB-47 UB-45 underway in 1916 The UB-II class. Second part
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German U-boats from WWI and WWII seem to look the same and be used the same. What important advances in submarine technology and tactics happened between the two world wars? - Quora
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