Another thought - in robot warfare there is an advantage in going after your enemies leadership and command and control systems. At the moment this sort of approach is only available to the most advanced powers. It may become easier for weaker powers in the new era.

The US secret service may be able to protect top national leaders against almost all likely human adversaries. How would they do against a foe who could deploy a lot of disposable assets.

It might be necessary to have an arms race in defensive robots to protect against the attacking ones.