Chapter 6 covers the first three months of 1983, which featured several important developments. By the mid-point of his first term, Reagan was facing a political crisis: an economic recession, a nationwide nuclear freeze movement, sagging approval ratings, heavy defeats in the midterm elections, and waning support for his military program. To counter the freeze movement and revive domestic support, Reagan would unveil a dramatic proposal for a space-based missile defense system, to protect the United States from nuclear attack. The Strategic Defense Initiative (or, to its critics, “Star Wars”) emerged as a major development in the story of the end of the Cold War. I explain the origins of SDI, arguing that the proposal stemmed from a domestic political crisis as much as strategic one. The chapter analyzes the Soviet response to SDI and the ramifications for the Cold War, as well as discussing Reagan’s famous “Evil Empire” speech of March 1983.