Submarines were crucial to both the Allies and the Axis powers during World War II. The German Navy would build 1,156 U-boats ...

After more than 25 years of searching, Kostas Thoctarides uncovered the location of the World War II British submarine, the HMS Triumph, which disappeared in 1942.

The wreckage of an Italian submarine that was sunk 80 years ago with four dozen sailors aboard during World War II has been found off the coast of Greece. In an interview with Reuters and in a ...

World War II submarines usually had a distinct look, shaped more like boats than the conventional crafts. But was there a reason for this design?

The USS Silversides submarine sank 23 ships during World War II. It was also the site of a successful emergency appendectomy in enemy waters.

DALLAS — The wreckage of a famed World War II-era U.S. Navy submarine, which sank a record number of Japanese ships with renowned Dallas-born naval commander Samuel David Dealey at the helm, has ...

When Germany invaded Poland, and World War 2 broke out, the inferior Polish forces did everything they could to stop them.

It's been 75 years since the USS Grayback went missing with 80 sailors aboard. Now, an organization that searches for sunken World War II submarines has solved the mystery of where it went down.

(CNN) – The wreck of one of the most storied U.S. Navy submarines of World War II has been found. The USS Harder was sunk in a battle on Aug. 24, 1944, as the U.S. sought to retake the Philippines ...

These strategic weapons turned Cold War submarines into the truly decisive platforms they are today. Submarines during World War II were used mainly for defending friendly coastlines, harassing ...

Navies around the world had big plans for 'cruiser submarines,' but they fell apart during World War II French navy submarine Surcouf in 1939. Albert Harlingue/Roger Viollet via Getty Images ...

The USS Silversides submarine sank 23 ships during World War II. It was also the site of a successful emergency appendectomy in enemy waters.