Every way in which a government spends money somehow is. In its essence it's a way to direct your citizen's productivity at something. That something could jus

Every way in which a government spends money somehow is. In its essence it's a way to direct your citizen's productivity at something. That something could just as well be advancing renewable energy, modernizing infrastructure or educating people, but ... yeah, if you really want to you can spend it on weapons, I guess.