History is full of examples of large groups of the faithful praying the Rosary for Peace to seek God’s intervention in tumultuous times.
Whenever Catholics are faced with war, one of the main weapons to be drawn is the Rosary, imploring heavenly help for a speedy return to peace.
Many saints, like Saint Padre Piorecall the power of the Rosary for peace.
History is also full of examples of Catholics joining together to pray the Rosary for Peace. the Manual of the National Catholic War Council in 1918 mentions a few examples.
The religious side of war should be constantly brought home… [and Catholic meetings] should be as much as possible centered around the high ideal of pray for the [soldiers] who are in front and especially for peace. Congregations should be made to understand the preeminent place the devotion of the Mother of God had in the great crises of the past. It is enough to tell them about this crisis which arose in the third quarter of the sixteenth century when civilization encountered a great enemy among the Turks and how, in the Battle of Lepanto it was the prayers of Catholic Europe to the Blessed Mother who brought the world victory of his enemies. They just have to be informed of the place the Rosary has stood throughout the centuries to win victory after victory for the Catholic nations of the past.
Saint John Paul II also specifically emphasized this aspect of the Rosary in his encyclical Rosarium Virginis Mariae.
A number of historical circumstances do too a revival of the Rosary quite timely. First, the need to implore Godthe gift of peace. The Rosary has been proposed many times by my predecessors and myself as a prayer for peace. At the beginning of a millennium that began with the terrifying attacks of September 11, 2001, a millennium that sees countless parts of the world every day new scenes of bloodshed and violenceto rediscover the Rosary means immersing oneself in the contemplation of the mystery of Christ who “is our peace”since he made “the two of us one, and broke down the dividing wall of enmity” (Eph 2:14). Therefore, one cannot recite the Rosary without feeling taken in a clear commitment to advance peace, especially in the land of Jesus, still so hard afflicted and so dear to the heart of every Christian.
In times of war and violence, the Church urges everyone to increase their prayer, especially the prayer of the Rosary for world peace.