A Tiny Sub 'Sank' A $4.5B American Aircraft Carrier, And Here's Why It Mattered To The US Navy

In 2015, a small French submarine called the Saphir snuck past the defenses of the USS Theodore Roosevelt aircraft carrier ...

This Advanced Nuclear Submarine Is Set To Join The US Navy's Fleet Soon After Successful Testing

The USS Massachusetts, a Block IV Virginia-class submarine, could soon join the U.S. Navy fleet after completing its initial ...