Throughout the long Battle of the Atlantic, Allied survival depended on keeping vital supply lines open despite relentless ...

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 ...

In September 1914, a single German U-boat ventured into the North Sea. Lieutenant Otto Weddigen’s U-9 slipped past patrols ...

In the final weeks of the war, the Navy hunted down and sank five German submarines in the North Atlantic. They stopped what ...

In an era of hypersonic missiles, stealth fighters, and nuclear subs, it’s hard to picture sailors going toe-to-toe with the enemy on a ship’s deck. Yet during World War II, the crew of a brand-new ...

In World War I, writes Chicoan and naval historian David Bruhn, “German U-boats sank over 5,200 vessels and came dangerously close to choking off Britain’s critical supply of food in the spring of ...