Or Russia or China's?
Or demons?
I hear this a lot. Secret Government technology. Yes there’s always secret government programs but if we had this type of technology or another government did then it would be used against our or their enemies... It’s far superior to anything we have.
Drone swarms are real but following a carrier group for days, maintaining flight with know known control or propulsion, accelerating and decelerating instantaneously we’re not there yet.
You would never test these assets if you did against a carrier group or any military training unit without there knowledge. That gets people killed.