The milestone B decision and engineering and manufacturing development phase for the Air Force's new land-based nuclear deterrent are each scheduled to begin about three months earlier than expected. The Ground Based Strategic Deterrent milestone B decision is now set for July 2020 and EMD for the fourth quarter of fiscal year 2020, compared to last year's forecast of September 2020 and first quarter of FY-21 respectively. Technology maturation risk reduction programming -- the first step in the development time...