Lockheed Martin wins $850 million Navy modification to push Trident II D5LE2 work toward the 2040s

Lockheed Martin said it has received an $850 million contract modification from the U.S. Navy to continue design and development of the Trident II D5 Life Extension 2 (D5LE2) program. The company framed the award as a key step in extending the operational life of the Trident II D5 strategic missile system, which it described as a cornerstone of U.S. deterrence.

In its announcement dated July 10, Lockheed Martin said the award supports the next phase of work under D5LE2, including continued design and development. The company also said the award was announced in April by the U.S. Department of War, a phrasing used in the release.

The Trident II D5, a submarine-launched ballistic missile, was originally developed in the 1980s and has already undergone a life extension modernization effort that Lockheed Martin said was completed in 2017. With D5LE2, the company said it is advancing the program to help ensure the system remains effective into the 2040s and beyond.

Lockheed Martin attributed the broader mission rationale to reliability and performance in the U.S. nuclear triad. The company said submarine-launched ballistic missiles are the sea-based leg of the triad and, in its description, account for approximately 70 percent of deployed strategic deterrent capability. It added that the sea-based leg provides what it called survivability, persistent presence, and operational flexibility.

Eric Scherff, vice president of Lockheed Martin’s Fleet Ballistic Missile (FBM) Program, said the company is committed to the mission as it moves into the next phase. In the release, he described the award as another step toward delivering a “credible and resilient deterrent” for American forces and allies.

The announcement placed execution across multiple states and regions. Lockheed Martin said work will be performed in Colorado, Florida, Utah, Washington, Georgia, and the National Capital Region. It also said the company is expanding its workforce to support the effort, including recruiting engineers, technicians, and other professionals.

Lockheed Martin’s messaging tied the hiring effort to delivering the capabilities needed for an evolving threat environment. The company said a modern deterrent remains essential to national security and allied assurance and that continued investment in programs like D5LE2 is aimed at strengthening deterrence while supporting the warfighter.

Industry context helps explain why life-extension work attracts sustained attention. Ballistic missile programs require long development and sustainment cycles, and modernization efforts are often intended to keep existing fleets effective while avoiding gaps in the deployed deterrent. By emphasizing progress “into the 2040s,” Lockheed Martin is indicating continuity in the Navy’s long-term planning for sea-based strategic forces.

What the release does not spell out is as specific as some outside observers might prefer. It does not provide details on which subsystems or design changes are covered under this particular modification, nor does it break down funding by effort, milestone, or component. It also does not disclose the contracting structure beyond describing it as a modification and does not provide a contract completion date or total program cost in this statement.

Going forward, the next watch items are likely to be further government contracting announcements and the visible ramp of program execution in the listed locations. For investors and defense stakeholders, continued contract coverage around D5LE2 and related sustainment efforts will be the clearest indicator of how the Navy and its major contractors are sequencing work to maintain the sea-based leg of the nuclear triad through the next decade and into the 2040s.