But get ready for the first AI driven world war
I'm not sure what to expect from an AI-driven world war. My first instinct would be that once the weaponry reaches critical mass the outcome depends on which entity has developed it first. The country that develops it first has all the power. A parralel discovery of AI-weaponry seems unlikely to me.
I don't think that we can speak in term of "countries" anymore, but blocks... like the EU and anglo-saxon blocks. Its about power as you put it... at whose expenses?