Battles decided by robots is an exciting prospect, saving uncountable lives. Unfortunately, only a handful of countries will have those available, so our enemies are gonna get fucked up pretty badly, which means they'll go even more underground/terrorist.
Sounds horrible. If the rich get richer, and the poor poorer, the future of war will be sticks against mecha; But then even the other side will get mecha eventually.
I was thinking of writing a sci-fi book.