This document-based inquiry walks students through six primary and secondary sources explaining how the United States and Soviet Union competed through proxy wars in Korea, Vietnam, Guatemala, and Chile from 1950-1975. Instead of telling students that superpowers avoided direct conflict, this DBQ makes them extract evidence from Truman's Korea intervention statement, the Gulf of Tonkin Resolution, Martin Luther King Jr.'s anti-war speech, declassified CIA documents about Guatemala and Chile coup