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essays collected from issues of the Washington Quarterly focus on important questions posed by the end of the Cold War, a changed Soviet Union, changing alliances, regional instabilities, and new security challenges These essays collected from recent issues of the Washington Quarterly focus on important questions posed by the end of the Cold War, a changed Soviet Union, changing alliances, regional instabilities, and new security challenges. The twenty-eight chapters are divided into sections that cover U.S. security in the 1990s, peacetime defense policy, security in Europe, international security, and proliferation and arms control. Brad Roberts is a Research Fellow in International Security Studies at the Center for Strategic and International Studies in Washington, D.C.