Add Yahoo as a preferred source to see more of our stories on Google. An unarmed Trident II D5 Life Extension missile launches from an Ohio-class ballistic missile submarine off the coast of Florida ...

In a more discreet fashion than it does when it comes to its upcoming warplanes, America's military is also seriously revamping its submarine power. Five years ago, for instance, it started building a ...

Northrop Grumman has received a U.S. Navy contract worth approximately $318.7 million to continue providing technical engineering and integration support services for the Trident II (D-5) ...

The Trident II can carry multiple independently targeted reentry vehicles and features a celestially-aided inertial navigation system. America’s sea-based leg of its nuclear deterrence policy is ...

America’s Trident D5 missiles represent a bedrock of America’s national defense—meaning that they must occasionally be tested. The Trident II D5 missile, officially designated the UGM-133A, was ...

Lockheed Martin Corp.’s LMT business segment, Space Systems, recently clinched a modification contract for manufacturing its Trident II D5 missile. Per the terms of the deal, Lockheed will also offer ...