TITUSVILLE, Fla. — Lockheed Martin has received an $850 million contract modification from the U.S. Navy to continue the design and development of the Trident II D5 Life Extension 2 (D5LE2) program. The award, which was originally announced by the U.S. Department of War in April 2026, supports the long-term modernization of one of the United States' most important strategic missile systems.
The Trident II D5 is a three-stage, solid-fueled submarine-launched ballistic missile (SLBM) that serves as the sea-based leg of the U.S. nuclear triad. According to Lockheed Martin, this component accounts for approximately 70 percent of the United States' deployed strategic deterrent capability, alongside land-based intercontinental ballistic missiles (ICBMs) and nuclear-capable bombers.
Originally developed in the 1980s, the Trident II D5 is designed for long-range strategic missions. The missile has an operational range of approximately 2,500 to 11,500 kilometers and can carry up to eight multiple independently targetable reentry vehicles (MIRVs). It has remained in service for decades due to its accuracy, reliability, and operational performance.
The missile previously underwent a major life extension program that was completed in 2017. The new D5LE2 effort focuses on replacing aging components, incorporating updated technologies, and ensuring the system remains operational and effective into the 2040s and beyond.
The Trident II D5 is deployed aboard the U.S. Navy's Ohio-class ballistic missile submarines and the United Kingdom's Vanguard-class submarines. Because these submarines operate while concealed at sea, the sea-based deterrent provides high survivability, continuous global presence, and operational flexibility.
The system's reliability has continued to be demonstrated through regular testing. Most recently, the Trident II D5 completed its 197th successful test launch during a flight conducted off the coast of Florida.
Commenting on the contract award, Eric Scherff, Vice President of Lockheed Martin's Fleet Ballistic Missile Program, said the company remains committed to supporting the mission as the program enters its next phase.
"Lockheed Martin is fully committed to the mission as we move forward into this next phase. This award marks another important step along the way as we continue delivering a credible and resilient deterrent for the American forces and allies."
The D5LE2 program is also intended to ensure the missile system remains compatible with the U.S. Navy's future Columbia-class ballistic missile submarines, which are being developed to replace the current Ohio-class fleet over the coming decades.
Work under the $850 million contract modification will be carried out at Lockheed Martin facilities in Colorado, Florida, Utah, Washington, Georgia, and the National Capital Region. To support the long-term requirements of the program, the company is expanding its workforce and recruiting engineers, technicians, and other skilled professionals for positions related to national security and advanced defense technologies.
The latest contract continues the long-running partnership between the U.S. Navy and Lockheed Martin on the Fleet Ballistic Missile program. By modernizing the Trident II D5 through the D5LE2 program, the Navy aims to maintain a reliable sea-based strategic deterrent while supporting future submarine platforms and extending the missile system's operational life well into the next two decades.
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