This document lays out how the military governments of Argentina, Chile, Uruguay, Paraguay, Bolivia, and Brazil built a secret counter terrorism alliance known as Operation Condor—a coordinated system for tracking, kidnapping, torturing, and eliminating political opponents across borders. Although framed as an effort against “Marxist terrorism,” Condor quickly expanded beyond intelligence-sharing into covert operations, including overseas assassination plans in Europe targeting not only leftist militants but also political exiles, human-rights activists, and even opposition politicians. Member states created shared data systems, communications networks, and joint hit teams trained in Buenos Aires.