Do you resolve your issues with words or violence? You don't understand why peace should be the highest priority, or it is?
If you begin an argument saying I won't use war unless I have no other choice, you are saying you will use war. Because nothing is going to sound rational, able to be solved, if you choose violence as one of those means.
But what if you refuse to change your course and the enemy attacks? Well then you don't have the luxury of choosing. Do you?