German U-boats nearly strangled Allied supply lines during the war. This video explains how codebreakers exposed their ...

Early on June 29, 1942, the 8,032-ton British steam tanker HMS Empire Mica cruised east through calm waters toward Key West, Florida, where it planned to join a convoy bound for the United Kingdom.

Submarines were key for Allied and Axis forces throughout World War II. At the war's onset, Germany's fleet of U-boat submarines created a distinct advantage for the Nazi's Kriegsmarine.According to ...

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 ...

The Belgian troopship SS Léopoldville had just slipped beneath the English Channel after being hit by a torpedo. Gerald Howard went down with the ship. The 23-year-old rifleman nearly drowned under ...

The U-505 submarine served 12 patrols and sank eight enemy boats before the US Navy captured it. The U-boat is now on display at Chicago's Griffin Museum of Science and Industry. Visitors can walk ...