True peace is not merely the absence of some negative force—tension, confusion, or war; it is the presence of some positive force—justice, goodwill and brotherhood. And so the peace which presently existed between the races was a negative peace devoid of any positive and lasting quality.
I do like this interpretation of peace being an active, positive force rather than a neutral lack. I feel that most times "keeping the peace" means to not advocate for oneself or, in the case of police response to protests, is actively violent.