Germany sent U-boats into the Gulf and River of Saint Lawrence to attack shipping supporting Britain’s Atlantic lifeline.

Germany first started testing submarines in 1851, and by the end of WWI, built more than 300 U-boats.

Key point: The German Navy still wants its submarines to be able to kill air assets to this day. At the height of the World War II Battle of the Atlantic, Grand Adm. Karl Dönitz, mastermind of the ...

A German U-boat that sank off the British coast during World War II has been captured on camera in remarkable images. The pictures were taken by diving contractor Dive Newquay, which took a group of ...

Eerie photos recently emerged of another shipwrecked U-boat some believe may have helped Hitler escape to Argentina THREE submarines used by the Nazis during World War II were discovered buried under ...

Here’s What You Need to Remember: World War II-era submarines needed to surface frequently to run their air-breathing diesel engines. ASV radars—even with their short effective range of six to ten ...

Over eight decades ago, the US Navy made the historic capture of a Nazi U-boat during World War II. A treasure trove of vital German intelligence, the submarine's capture was top-secret. See inside ...