You can have swarms of drones that gather data and feed it to eachothers continuously, each making decisions individually and as a swarm, like a swarm of bees but million times as destructive, of course.

But it's just simply that 2 computers can communicate between eachothers so much faster and more efficiently than having humans in the loop

Also this allows far better autonomous operation, quite like sending an elite team somewhere they have to operate with zero contact back home

But yes, it's also really fucking terrifying thought people have actually built these things and thought it's a good idea