Today’s D Brief: ICBM work restarts; USAF’s AI-decision experiments; Ukraine’s drone tactics; Bye-bye, lonely F-35B; And a bit more...

Work resumes on new ICBM silos. Six months after Air Force leaders ordered a pause on the way-over-budget command and launch segments of the Sentinel intercontinental ballistic missile program, Northrop Grumman has resumed work under a service-approved plan, company executives said Tuesday. “We are back into designing those [launch facilities] and really nailing down with the Air Force the appropriate requirements that will lead us to be able to move faster and potentially reduce costs on