I have a morbid fascination with the idea of all-robot wars between countries with rough parity to each other (both countries have robot armies/navies/air forces). War always seemed sorta pointless to me but it becomes so much more so when you can quantify all the elements of what should make a military successful. If you know all the aspects of a robot force (power efficiency, sensor suite, decision-making, etc) and have a rough idea of the production capabilities of the warring countries then it seems like you could just crunch some numbers and have an idea of who would win in a war of attrition. Strategic objectives and planning might still be relegated to human generals, of course, but at that point the generals are practically just playing a real-time strategy game set in real life rather than in a computer.