#Nuclear Threats

As the US Navy advances its Columbia-class submarines and Britain fields the Dreadnought program, Russia has confirmed it is developing a fifth-generation nuclear ballistic missile submarine—setting the stage for a new chapter in undersea strategic competition.

The Pentagon has quietly taken a major step toward building the first American space-based interceptors—weapons designed to strike enemy ballistic missiles in the opening seconds after launch, while they’re still clawing upward through the atmosphere and unable to maneuver.