The contribution that religion can make to peacemaking – as the flip side of religious conflict – is only beginning to be explored and explicated. All three of the Abrahamic faiths contain strong warrants for peacemaking. There are past cases of mediation and peacemaking by religious leaders and institutions. For example, the World Council of Churches and the All Africa Conference of Churches mediated the short-lived 1972 peace agreement in Sudan. In South Africa, various churches were at the vanguard of the struggle against apartheid and the peaceful transition. The most dramatic and most frequently cited case is the successful mediation the Rome-based Community of Sant’Egidio achieved to help end the civil war in Mozambique in 1992.

http://www.usip.org/pubs/peaceworks/pwks55.html