Brotherhood isn’t the only reason struggling vets cluster. Seeing your own demons reflected back at you, it creates a safe place to just be wounded. It gives permission, in a way, to not be okay. You go to your brothers (and sisters) and not only will they watch over you when you are clearly incapable of doing so yourself, they will never tell you to be anything other than what you are, even if on that particular day what you are is a collapsing wreck of a human being.