The Trident II (D5) is a three-decade old missile supplied to the Navy and its U.K. counterpart by Lockheed Martin’s space systems business.

The Trident II D5 Fleet Ballistic Missile, equipped with upgraded avionics sub-systems, has passed its 150th test firing, a reliability milestone for large ballistic missiles.

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 ...

Lockheed Martin Corp. LMT recently secured a contract to provide Life Extension 2 SSP Alteration advanced design and development for the Trident II (D5) program. The deal has been given by the ...

New photos were released by the U.S. Navy of the unarmed Trident II D5 Missile that was launched from a ballistic missile submarine off Point Mugu Saturday night.

LMT secures a $63.4 million contract for the production of Trident II D5 missiles and provision of deployed systems support.

National Harbor, Md. -- The Navy is modernizing its arsenal of Trident II D5 nuclear missiles in order to ensure their service life can extend for 25 more years aboard the Navy’s nuclear ...

DASO-28 increased the Trident II D5 record to 167 successful test launches since design completion in 1989 – the most reliable test record for a large ballistic missile.

Trident is Britain's constant at-sea nuclear deterrent, made up of four Vanguard-class submarines that can fire Trident II D5 ballistic missiles.

LMT secures a contract for the Trident II D5 Missile from the Strategic Systems Programs, Washington, D.C.

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 ...