US Navy's new 20,000-ton nuclear-powered submarine takes shape

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New radar system can detect high-speed drones nearby ports, vessels in extreme environmentUS refueling fleet falls below Air Force readiness standards, new watchdog report findsGerman firm unveils 4-ton CA-1EA unmanned electronic warfare aircraft, IOC in 2031Turkey’s AKYA heavyweight torpedo destroys target ship in major naval exerciseNew unmanned aircraft with 40-hour endurance, 2,866-lb payload capacity completes assembly