Some voting systems are adversarial and Orwellian; and some of these lead to war: majority voting in Bosnia, first-past-the-post in Kenya, etc.. Other voting systems are win-win, and the above article has just been published in Peace Economics, Peace Science and Public Policy. See:
http://www.degruyter.com/view/j/peps.ahead-of-print/peps-2013-0010/peps-2013-0010.xml?format=INT