Summary and 4 Points You Need to Know: The U.S. Navy’s Columbia-class submarines, designed to replace the aging Ohio-class vessels and maintain America’s sea-based nuclear deterrent ...

Two American fast-attack submarines, armed with cruise missiles and torpedoes, visited Guam earlier this month.

A U.S. nuclear-powered submarine, the USS Columbia, arrived in South Korea on Monday, November 18, for what is officially described as a refueling mission. The 6,000-ton submarine is docked at the ...

and a nuclear fast-attack submarine (SSN 694), which completed an around-the-world cruise on its first deployment in 1980 and was decommissioned in 1997. The first two Columbia-class submarines ...

The Columbia submarines are expected to begin replacing Ohio-class vessels from 2031, and to form a 12-strong class over the next two decades, delivering the US nuclear deterrent. Each Columbia-class ...

A new budgetary report said it would be 'difficult and expensive' to sell Virginia class submarines to Australia without compromising the US Navy.

The United States has never sold a nuclear-powered vessel to ... choosing a U.S. Navy attack submarine admiral to the post.... The Columbia-class will replace the U.S. Navy’s Cold War-era ...

Marcus Langseth, a geologist at Columbia University's Lamont-Doherty ... In 1958, the USS Nautilus, America's first nuclear-powered submarine, became the first sub to travel under the Arctic ...

The upgraded MK 48 Mod 7 torpedo variant will arm the U.S. Navy’s Columbia-class nuclear-powered ballistic missile submarines with a longer-range, more lethal, and more capable conventional weapon.

His wife, Cynthia Blumenthal, is the vessel's sponsor. The Columbia-class submarines provide the U.S. Navy with underwater stealth launch platforms for ballistic missiles containing nuclear warheads ...