A test of Britain's nuclear deterrent system ended in failure for the second time. The incident involved a $70 million Trident missile that both the US and UK have in their arsenal. Their high price ...

A British nuclear missile test launch failed at a site off the coast of Florida, marking the second time in eight years that the country’s Trident 2 ballistic missiles have malfunctioned during trials ...

A Trident II D5 missile breaks the surface of the water having been fired from HMS Vanguard, a British strategic missile submarine. More recent tests didn't go so well. (British Defence Ministry) ...

A nuclear submarine from the United States or the United Kingdom conducted an unannounced test launch of the Trident-II D5 intercontinental ballistic missile, which can carry nuclear warheads, toward ...

FRESNO, Calif. (KFSN) -- Many in the Central Valley saw a bright light in the sky on Saturday night. The U.S. Navy said the light was from an unarmed Trident II D5 missile, but many people still have ...

TWO TRIDENTS: With the Aug. 25 launch of two Trident II D5 Fleet Ballistic Missiles (FMBs), the U.S. Navy is celebrating 124 consecutive successful test launches since 1989. It is a record Trident II ...

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