For peace advocates a corollary to Clausewitz’s dictum that “war is politics by other means” might be that other politics could prevent war. By highlighting both individual peace advocates and antiwar/peace organizations from World War I through the wars of the 21st century, the chapters will provide insights into how these individuals and organizations articulated their opposition to and mobilized against specific wars and international/regional conflicts. Organized roughly in chronological order, each chapter will illuminate the socio-historical conditions under which such peace...