Japan’s Sōryū-class submarines are the backbone of the JMSDF’s undersea force and some of the most capable non-nuclear subs ...

The age of diesel-powered submarines began in 1912, and these subs dominated the waters for more than 40 years, through both World War I and World War II. In the U.S., this era ended when the last ...

With each passing generation, submarine capabilities continue to grow. How have these unique naval vessels developed over the ...