The U.S. Navy carried out four scheduled unarmed missile tests of the Trident II D5LE off the coast of Florida last week.

A nuclear submarine of either the United States or the Royal UK Navy likely test fired a UGM-133 Trident II D5 Submarine-Launched Ballistic Missile (SLBM) in the North Atlantic on September 21, 2025.

The missile was launched from a specially designed rail-based mobile launcher, providing cross-country mobility.

United States military submarines are a crucial component to the country's nuclear triad, wielding the ability to launch ...

America’s Trident D5 missiles represent a bedrock of America’s national defense—meaning that they must occasionally be tested.

The unveiling underscores Pyongyang’s continued focus on expanding its nuclear arsenal amid tensions with the United States.

Iran has likely carried out an undeclared missile test at its Imam Khomeini Spaceport, according to satellite photos analyzed ...

Whatever the specific weapon that was tested was called, it undoubtedly erodes US nuclear superiority by enhancing China’s second-strike capability.

Google Earth has updated its images of Novaya Zemlya, the Arctic archipelago where Russia’s nuclear weapon designers are ...

BRUSSELS -- BRUSSELS (AP) — NATO will hold its major annual nuclear exercise next week, the alliance’s chief announced Friday ...

Sir Keir Starmer has promised to meet veterans of Britain's Cold War nuclear weapons testing programme "hopefully by the end ...

President Vladimir Putin said on Friday that Russia was developing new strategic weapons and it would not be critical for ...