The sub fired multiple shells at a chemical plant south of Wilmington, NC, witnesses say.

To this day, there has only been one recorded instance of submarine-on-submarine warfare during WWII. The German Navy's destroyed U-864 is toxic to this day.

In an era of hypersonic missiles, stealth fighters, and nuclear subs, it’s hard to picture sailors going toe-to-toe with the enemy on a ship’s deck. Yet during World War II, the crew of a brand-new ...