Although they lost World War II, the Nazis were more technologically advanced than their Allied rivals in multiple ways. Berlin’s problem was scale—and trying to do too much with too few resources.

Now they are in a race against time to learn the secrets hidden. U-boats stranded on the south coast of England after the surrender of Germany in the First World War are surrounded by onlookers on ...

The post-war narrative of the German U-boat efforts follows several stages: the first “Happy Time,” followed by the second “Happy Time,” and then utter destruction by the Allies. In reality, the ...