In their situations around the world all Maryknoll Sisters work and pray for peace and justice. At the Maryknoll Sisters Center a gong chimes each morning at 10:30 to announce the power prayer for world peace, and the Sisters and their lay co-workers stop for a minute to join their prayers for peace. Other friends, wherever they are, are invited to unite with this prayer at 10:30 am (New York time).

Sister Bernice Rigney has spent decades in Africa and since 1988 has been based in Kenya providing counseling, crisis intervention and debriefing with victims of violence, including the Kenyan and U.S. survivors of the ’98 U.S. Embassy bombing in Nairobi and later, the many refugees from Rwanda. Presently she works with others to restore peace in Kenya. The Maryknoll Sisters Peace Building Team in Africa has been based in Kenya since August, 2006. They desire to facilitate relationships among culturally diverse people, and together explore peaceful means of coexistence.

This team, which now numbers four, are from diverse cultures and ethnic backgrounds. They believe in the Africa proverb that says, "Peace is costly but it is worth the expense".

In the Sudan, two Sisters from the Maryknoll Sisters Contemplative Community offer a House of Peace and Prayer for the residents and refugees of this war-torn country.Two Maryknoll Sisters, Jean Fallon and Rose Marie Milazzo, have recently joined the Christian Peacemaker Teams (CPT). Sister Jean is presently in Hebron and Sister Rose Marie is completing her training. CPT places violence-reduction teams in crisis situations and militarized areas around the world at the initiative of local peace and human rights workers. Initiated by Mennonites, Brethren and Quakers with broad ecumenical participation, CPT's ministry of biblically-based and spiritually-centered peacemaking emphasizes creative public witness, nonviolent direct action and protection of human rights.