The United States Air Force and Northrop Grumman are advancing the LGM-35A Sentinel ICBM, with a first flight test planned for 2027 and operational deployment expected in the early 2030s. The system will replace the Minuteman III and modernize the land-based nuclear deterrent. Development includes upgraded silos, digital command systems, and extensive testing of propulsion, guidance, and structural components. The program involves over 500 suppliers and is projected to remain operational through 2075.
