In 1999 Nelson Mandela spoke at the Parliament of the World’s Religions about the role of interfaith cooperation in ending Apartheid. You can read his speech here:
No government or social agency can on its own meet the enormous challenges… of development of our age. Partnerships are required across the broad range of society. In drawing upon its spiritual and communal resources, religion can be a powerful partner in such causes as meeting the challenges of poverty, alienation, the abuse of women and children, and the destructive disregard for our natural environment.You can read the full speech on the Council for a Parliament of the World’s Religions’ Blog.