mrep

For the good ones, I doubt it.

Israel today has trophy [0] which can detect if an rpg is going to hit its tank and shoot it out of the sky.

(from wiki): The system allegedly relies heavily on high-speed computational technologies. Upon detection of an incoming projectile, the system automatically computes various parameters, such as the approach vector, nature of the threat, time to impact, and angle of approach. The defensive projectiles are launched by two rotating projectile launchers positioned on the sides of the vehicle. These launchers deploy a number of small EFPs (Explosively Formed Penetrators), forming a precise and closely spaced matrix, targeting an area in front of the anti-tank projectile.

And that's one country with 10 million people and a mere $46.5 billion in military spending. And BTW allies generally share tech (we the US suck right now (sorry)) but Trophy is being integrated with multiple allies [1].

Developing automated drone shooting destroyers I think we can do.

EDIT: To add, I bet those drones can be shot down by 1 minigun or shotgun shell which aren't relatively expensive.

Edit 2, the dutch already have a badass automated minigun too [2, 3].

Edit 3: multiple countries have similar systems but they are all mainly for boats. I think we can adapt the to army bases [4].