Some parts of the nuclear triad can be extended in service, and some cannot, said Gen. Robert Kehler, US Strategic Command boss, Tuesday. “We’ve had great success” extending the service lives of the bomber platforms, he told defense reporters in Washington, D.C., “but I know we’re going to reach the end of the service life of the submarine,” he added, referring to the nation’s Ohio-class ballistic missile-carrying subs. Although there’s debate about “the fidelity of the date” when each nuclear platform simply must be retired, the Ohio-class subs will have to come out of inventory starting in the late 2020s, a factor of “pure…metallurgy,” said Kehler.
The rate of building B-21 bombers would speed up if the fiscal 2026 defense budget passes. But it remains unclear how much capacity would be added, and whether the Air Force would simply build the bombers faster, or buy more.