Northrop Grumman’s design for a new nuclear-tipped intercontinental ballistic missile named Ground Based Strategic Deterrent (GBSD) has completed first major design review. Around 660 GBSDs will replace the five-decades old Minuteman III nuclear missiles starting in the late 2020s. Northrop was awarded a $13.3 billion engineering and manufacturing development (EMD) agreement in September. The EMD phase encompasses total system design… – Defense World Photo: US Air Force