Pentagon Advances $141 Billion Sentinel ICBM Program Despite 81% Cost Overrun

The new nuclear warhead initiative faces significant budget increases and delays, but officials cite critical defense needs against global threats.

The Sentinel program will replace the aging Minuteman III missiles, modernizing the U.S. nuclear triad's land-based component.
Estimated costs have surged to nearly $141 billion, with potential further increases, highlighting planning and complexity challenges.
A Nunn-McCurdy breach triggered a rigorous review, ultimately allowing the program to continue with some restructuring and budget adjustments.
Key cost drivers include extensive command-and-launch infrastructure and unforeseen complexities in modernization efforts.
Initial operational capability is now delayed to the early 2030s, reflecting the program's expanded scope and technical demands.