US to build a Golden Fleet of battleships. Trump announces plans for a new navy 'battleship'. Bold plan to build a large ship part of 'golden fleet' vision. USS defiant will be largest US surface combatant since WW2. Hypersonic missiles, nuclear cruise missiles, rail guns...And high-powered lasers (US Navy developing technology). Navy spent millions and 15 years trying to field a rail gun. Analysts: The employment of laser tech is still limited. Nuclear cruise missiles on ships may test pacts wi