The U.S. Navy has reached a Cold War-era milestone in the Arctic, deploying two Virginia-class submarines beneath the polar ice cap for the 100th time since World War II.

The Iran war ground through 12th day as uncertainty grew over when it might end, amid continued attacks, a mounting human toll and concerns over the economic and energy impacts.

In the early morning hours of July 25, 1943, a German submarine fired on the old Ethyl-Dow Chemical Plant in Kure Beach. Or maybe it didn't.

In the dark years of World War Two, Allied convoys were being torn apart by German U-boats, with supplies to Britain sinking ...

These are the approximate positions of the U.S. Navy’s deployed carrier strike groups and amphibious ready groups throughout ...

The tanker Dixie Arrow was among the ships targeted by German U-boats off North Carolina in WWII. It was hit by a U-boat ...

As Enigma was broken and U-boats were hunted down, Germany turned to desperate coastal weapons meant to disrupt Allied ...

The attack, in the eastern Pacific, was part of a continuing campaign by the U.S. Southern Command to target people suspected of smuggling drugs by sea.

The gunboat sank during the Revolutionary War and wasn't found for 159 years. The Smithsonian is sprucing it up for America's 250th birthday.