My own understanding of the term peace culture is that it is a culture that promotes peaceable diversity, dealing creatively with the conflicts and differences that appear in every society, because no two humans are alike. It includes lifeways, patterns of belief, values and behavior. It includes the accompanying institutionalized arrangements that promote mutual caring, well-being and the equitable sharing of the Earth's resources among its members and with all living beings. This is what we are working to achieve for the world we live in.
From Into Full Flower: Making Peace Cultures Happen