The Episcopal Peace Fellowship began in the early days of World War II and continues to speak out against war in the Episcopal community.

The Pentecostals & Charismatics for Peace & Justice, formerly the Pentecostal Charismatic Peace Fellowship, opposes war in the Pentecostal and Charismatic Christian communities. Contact administrator Natasha Rubin.

The Baptist Peace Fellowship of North America is the largest network of Baptist peacemakers in the world. Contact information manager Allison Paksoy.

The Presbyterian Peace Fellowship started in the 1940s as a group that provided support to conscientious objectors to World War II and continue to speak out against war. Rick Ufford-Chase is the executive director.

JustWarTheory.com is an extensive guide to philosophical studies of warfare, maintained by Mark Rigstad, associate professor of philosophy at Oakland University. It is a treasure trove of links, information and articles on just war theory.

The BBC maintains an ethics guide on war as part of their section on religion and ethics.

Gregory Clapper is a professor of religion and philosophy at the University of Indianapolis and a National Guard chaplain. His research interests include Christian theology, ethics; philosophy of religion, Christian ethics, Christian spiritual formation, Wesleyan studies and church history.

Martin L. Cook is the Adm. James B. Stockdale Professor of Professional Military Ethics at the U.S. Naval War College in Newport, R.I.

This story, published on May 14, 2013, in the New York Times, explains how Vermont became the first state to pass a legislative measure allowing physicians to administer lethal drugs to terminally ill patients in May 2013.