#Nuclear

The United States is moving toward a new era of undersea nuclear dominance, as next-generation Columbia-class submarines promise quieter operations, longer endurance, and more flexible deterrence—while lawmakers explore expanding the fleet to further strengthen America’s strategic edge over Russia and China.

Russia is preparing to overhaul its entire nuclear-powered attack submarine fleet, replacing aging Soviet-era boats with a smaller but far more capable force built around Yasen-class submarines—reshaping its undersea strategy for decades to come.