Why does a country need to instill fear in another unless they're acting in bad faith? "We're going to go do things that negatively impact you but you can't do anything about it unless you want the wrath of our weaponry." War is old tech. No one needs war. It's just a way flex. Small man syndrome. Imagine going to war with your wife every time you had a disagreement. Imagine threatening to beat your wife every time she did something you didn't like. It's not a long term strategy.