The scope and timing of a potential Russian counterattack was still unclear as of Wednesday afternoon, the German defense minister said.
The Air Force's top uniformed leader said that planners need to consider vulnerabilities at military sites once thought untouchable by enemy forces.
Operations against Houthi militants in the Red Sea have drawn down missile supplies potentially needed for future operations.
The Sentinel ICBM program is already alarmingly over budget, and trying to reuse 55-year-old Minuteman III silos would put it even further behind.
