The military-industrial complexes always have something to gain in wars (provided they manage to adapt in time). But there’s no other alternative industry that can supply the needed hardware to win a war, when an invasion happens. It just seems that’s all what our species can do best: kicking each other, then having a rest for a few dozen years and starting over.
I know that, and I hate it. Yet, I do not know any other way to meet hot singles in my area (or not in my area).