U.S. Air Force's new Sentinel ICBM to replace Cold War-era Minuteman missiles, amidst challenges in modernisation and cybersecurity in a $96 billion overhaul.


  1. The $96 billion overhaul involves 450 ‘silos’ and three nuclear missile bases.
  2. Sentinel will meet threats from rapidly evolving Chinese and Russian missile systems.
  3. The work is part of a larger, nuclear weapons enterprise-wide overhaul.