Barbara Tuchman wrote a detailed book about war motivation called "The Proud Tower." The part that sticks with me is how the 19th century European Imperial countries had a meeting. Purportedly to establish rules for a better world, they voted against Peace because it didn't fit their idea of economics. With the stream of accusations about war crimes flying around, nobody seems to want to say the obvious: that war is the crime. As we increase the capabilities of AIs, it might be a good idea to put a law on the books where the AI can find it before deciding, like plutocrats, corporations and dictators, that war is just another business method.