Nuclear submarines carry out multiple types of missions, but no matter the mission, it's vital that they remain hidden in the ocean's depths.

The mystique of nuclear-powered submarines has been captured by at least half a dozen popular Hollywood films. Some have centered on the drama of undersea warfare and the risk of global nuclear ...

JS Sogei, the sixth Taigei-class submarine, entered the water in a ceremony held at KHI’s shipyard in Kobe City, Japan, Oct. 14, 2025. The Taigei class are Japan’s newest diesel-electric submarines.

The United States military uses nuclear submarines to attack strategic targets, gather intelligence, and deter threats. Submarines make up part of the "nuclear triad" that protects against nuclear ...