or U-boats, sunk, scuttled, captured, or otherwise lost to German forces during World War II. Here, naval historian Timothy Mulligan describes 25 of the most historically significant U-boats.

Nazi Germany’s feared U-boat fleet suffered a crushing blow as seven submarines were hunted down in a single day ...

Germany concentrated more and more effort in its U-boat fleets as the final weapon to defeat Great Britain.” If Taylor’s team could confirm the old story that the two vessels wiped each other ...

The ship was transporting supplies and soldiers along the coast when it was torpedoed by German U-boat U-861 on the night ... to send troops to fight in World War II on behalf of the Allies ...

After more than 80 years hidden beneath the waves off Rio de Janeiro, the location of a Brazilian troop transport ship torpedoed and sunk by Nazi Germany was definitively confirmed by Brazil’s navy ...