In a significant stride toward fortifying the nation’s defense capabilities, the US Air Force is forging ahead with the development of the LGM-35A Sentinel, set to replace the aging Minuteman III intercontinental ballistic missile (ICBM).

The Sentinel, a cornerstone of the Ground Based Strategic Deterrent (GBSD) program, marks a pivotal leap in nuclear deterrence technology, backed by a recent milestone in the procurement of the MK21A Reentry Vehicle.

Enhancing National Security: The Sentinel Initiative

The Air Force Nuclear Weapons Center recently unveiled a momentous contract award totaling $996.2 million to Lockheed Martin, aimed at steering the design and construction of the MK21A Reentry Vehicle—a critical component for the future LGM-35A Sentinel ICBM.

The Sentinel weapon system, developed by Northrop Grumman Corp., represents an instrumental initiative to bolster the country’s contemporary nuclear deterrence apparatus.

Accordingly, it is deemed the most cost-effective option, promising a safe, secure, and effective land-based nuclear deterrent with capabilities projected well into 2075.

“The Sentinel ICBM embodies the culmination of meticulous planning, technological innovation, and unwavering commitment to fortifying our nation’s defense infrastructure,” said a senior Air Force Nuclear Weapons Center official.

Slated for operational readiness by 2029, this cutting-edge missile system embodies heightened precision, fortified security measures, and enhanced reliability.