Conventional U-boat submarines had been the backbone of the Kriegsmarine during the early stages of World War 2. Still, as allies developed more prominent and more powerful fleets, the outdated German ...

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.

Accidents involving toilets typically only involve personal embarrassment, and rarely are they the cause behind the sinking of a specialized hunter-killer submarine. That's precisely what happened, ...