Peace is the end to conflict. Peace is satisfaction, contentment. Conflict is the opposite, a disruption or upheaval. A person who is content does not cause conflict.
To act to end to conflict, those who are at peace may help to offer examples of peace to those who are in conflict. Compromise and concession can be used to bring calm. Compassion and care may help to demonstrate that we are not all so dissatisfied.
In my opinion the most satisfactory peace does not come with the acquisition of things, but of gratitude for the qualities one already represents. The love seek is the love you give.