Rather than admit that the reason we have militaries is because war is as natural to nations as pooping is to a dog and in many cases is the only reason why certain geographical aggregations exist at all, diplomats and lawyers and diplomatic liars and lying diplomats will tell you that sometimes it is necessary to 'go to' war in order to protect our ideal that everyone should die in debt peacefully rather than have their hire/purchase plans disturbed by local conflict.

We don't 'go to' war. We are always at war. That's why we have sporting events involving thousands of people gathered in one place at one time. That's why we have political rallies involving thousands of people in one place at one time. That's why Roger Waters keeps reviving the 'The Wall' in places like Berlin and Tel Aviv. What is the difference between rape and harassment in the eyes of the law?
The propaganda war that nations commit on their populations are just as devastating as a daisy cutter dropped on a kindergarten. The self-delusions that the populations are capable of committing on themselves are almost as bad as the propaganda, because closing your eyes and popping in earplugs does not stop the noises in your head and the dreams from recurring.

Militaries do not exist for defense, I don't care what the Swiss tell you. They are a political, law enforcement, economic, and public relations necessity. Why else do you think they wear uniforms? In many nations, the police are part of the military. In others, they merely shadow the military with their ranks and organisation tables.
The military itself hates 'police' and 'peacekeeping' activities. You don't settle an attack dog down to babysit kittens. Not until he's retired.

Peace is the buzzing in your ears after the mortars have run out of shells.