The Sentinel ICBM program is undergoing a restructure, with top commanders stating it will bring more capability faster. The timeline for the program's completion and initial capability is uncertain, with reports suggesting it may be completed in 2026, have its first launch in 2027, and become operational in the early 2030s. The program's details, including the number of nuclear warheads the missiles will carry, are still being determined amid ongoing restructuring efforts.