The first flight test of the guidance system was in early 2012 aboard the ballistic missile submarine USS Tennessee. The Trident II Weapons System is the U.S. and British's primary submarine ...

Trident II D5 is a submarine-launched ballistic ... an aerospike designed to reduce drag by around 50% extends from the tip of the missile. Once the missile reaches space, its stellar sighting ...

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 ...

The test firing of a Trident missile from a Royal Navy submarine has failed, for the second time in a row. The latest test of the UK's nuclear deterrent was from HMS Vanguard and was seen by ...

An unarmed Trident missile splashed into the sea close to its launch site, the U.K. government confirmed on Wednesday, fueling scrutiny of the state of Britain’s nuclear deterrent. By Mark ...