The Battle of Midway is one of the best-known conflicts of World War II, and while the U.S. was victorious, the Japanese IJN Submarine I-168 did severe damage to their fleet. The I-168 had a brief ...

USS Yorktown, on the verge of being saved by damage control parties after suffering several air attacks, was sunk at the Battle of Midway by I-168. American submarines would have their revenge.

As the world's first nuclear-powered submarine, Nautilus could remain submerged for two weeks at a time and travel at speeds of over 20 knots, or about 23 miles per hour. Previously, World War II ...

By Choe Sang-Hun Reporting from Seoul North Korea said on Saturday that it was building its first nuclear-powered submarine to enhance its nuclear weapons abilities, and the state news media ...