Perhaps the best known Catholic contribution to responding to violent conflict is the just war tradition , which was developed in order to reduce recourse to war and to limit its humanitarian consequences.
But there is a second tradition as well. Lesser known is our Catholic commitment to active non-violence and building a just peace. Gospel non-violence is not passive. Rather, it entails active strategies such as peace-building, conflict transformation, restorative justice, and unarmed civilian protection. Seeking a just peace means preventing conflict by addressing its causes, building relationships, and facilitating healing and restoration.
In his Message for the 50th World Day of Peace, celebrated on Jan. 1, 2017, Pope Francis urges families, faith communities, government leaders, and the international community to practice non-violence and work to build a just peace.
You can find his message (from the Vatican site) HERE.