USAF breaks ground on Sentinel prototype silo as warhead count, IOC slip raise deterrence questions
On Feb. 13 the U.S. Air Force and Northrop Grumman broke ground on a prototype silo for the LGM‑35A Sentinel at Aurora, Colorado. The Sentinel’s new silo features, an unresolved warhead count and IOC pushed to the early 2030s raise acquisition and deterrence questions as China expands its nuclear arsenal.