This lesson plan for high school students in World History and United States History courses is related to Augusto Pinochet's 1973 coup d'etat in Chile. Students will simulate a fictitious United Nations General Assembly Meeting in December 1973 to address the crisis in Chile. This lesson is based on material from the CNN Cold War documentary series, episode 18 "Backyard" and primary source material from "Chile and the United States: Declassified Documents Relating to the Military Coup, September 11, 1973", National Security Archive Electronic Briefing Book No. 8, by Peter Kornbluh (http://nsarchive.gwu.edu/NSAEBB/NSAEBB8/nsaebb8i.htm). There are two documents related to this lesson plan: the Chilean Coup UN Simulation Scenario and Background Reading file, and the Chilean Coup UN Simulation - Student Instructions and Template file.