 The work of MCS in the late 1980s also coincided with the development of Christian Peacemaker Teams a joint effort by the two largest North American Mennonite denominations and the Church of the Brethren.Founded after a Mennonite World Conference keynote address by Ronald J. Sider author of the bestselling "Rich Christians in an Age of Hunger" (published and republished in 1977, 1997, 2005) in which he said, 
We must be prepared to die by the thousands.Those who believed in peace through the sword have not hesitated to die.