Who Will Command the Robot Armies?
What I am worried about is that in future AI swarm military robots will enable something that wasn't seen yet in history. Now to make dictatorship state you need support of military/rebels/people behind it, you can't make it on your own. Without humans in equation who will stop some oligarch with enough money to take over some  nation in for example Africa or Middle East? You wouldn't  need hundreds of thousands/millions people supporting you anymore.