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-powered submarine from either the United States or the United Kingdom appears to have test-fired a UGM-133 Trident II D5 submarine-launched ballistic missile (SLBM) from Puerto Rico in the ...

India successfully test-fired its nuclear-capable Agni-Prime intermediate-range ballistic missile from a rail-based mobile launcher ...

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

Videos of Iran's missile tests circulating online highlight Tehran's defiance amid U.S., Israeli strikes and looming ...

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

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

At a massive military parade attended by foreign leaders, North Korean leader Kim Jong Un rolled out his nuclear-armed ...

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

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

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

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