Since the end of World War II and the breakup of the Soviet Union in 1991, the United States has taken the lead in maintaining European security through its membership in NATO. However, the economic and political positions of both the United States and Europe have changed in the last seventy-five years, leading many to wonder if America is still willing and able to provide for Europe’s security needs, especially at a time when the Russian Federation has become a more aggressive military and political player. Europe Alone explores the prospects of European security in a future when the United States may no longer be a reliable partner. Leading security scholars offer a multifaceted approach to the changing role and meaning of national security into the future. They look at European security issues from the perspective of small states and seek to broaden the concept of security beyond traditional domestic policing or national defense.