With President Donald Trump possible ordering the U.S. to escort tankers through the Strait of Hormuz, what would that look like, including threats from Iran?

Trump said the U.S. could send a naval escort to open up the oil shipping channel but now officials say they're not ready.

The Iranian frigate sunk by a U.S. submarine last week had just left an Indian naval exercise. Now India's political ...

Add Yahoo as a preferred source to see more of our stories on Google. The destroyer USS Truxtun sails in Bosporus Strait en route to the Black Sea, in Istanbul, Turkey, March 7, 2014. (Emrah Gurel/AP) ...

The U.S. Navy’s attack on an Iranian frigate, the IRIS Dena, on Wednesday was the first time an American submarine sunk an enemy ship since World War II. But the Dena may not have been armed because ...

Second British ship being prepared to respond to Middle East crisis - RFA Lyme Bay could be sent to the eastern Mediterranean if the crisis continues.

A single Mk-48 torpedo achieved "immediate effect" on an Iranian frigate, which was operating in the Indian Ocean, the Pentagon confirmed.

While it’s been almost a century since the last kill by an American submarine, other navies have done so more recently.