LGM-35A Sentinel ICBM Missile with New Modular Silo

[william]

The US Air Force and Northrop Grumman broke ground on a prototype launch silo for the LGM-35A Sentinel intercontinental ballistic missile on February 13, 2026, at Northrop Grumman’s Strategic Missile Test and Production Complex in Promontory, Utah.

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Sentinel ICBM silo prototyping gets underway in Utah0

The US Air Force and Northrop Grumman have broken ground on a Sentinel ICBM prototype silo in Utah as the program targets initial capability by the early 2030s.

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