Written by renowned international relations expert Joseph S. Nye, this lively book gives readers the background in history and political concepts they need to understand the issues facing our world today: the war in Iraq, the Israeli-Palestinian conflict, nuclear proliferation in North Korea and Iran, and much more. Origins of the Great Twentieth-Century Conflicts; Balance of Power and World War I; The Failure of Collective Security and World War II; The Cold War; Intervention, Institutions, and Regional Conflicts; Interdependence and Globalization; The Information Age; A New World Order? Anyone interested in understanding international relations today.