The armed forces of Europe have undergone a dramatic transformation since the collapse of the Soviet Union. The Handbook of European Defence Policies and Armed Forces provides the first comprehensive analysis of national security and defence policies, strategies, doctrines, capabilities, and military operations, as well as the alliances and partnerships of European armed forces in response to the security challenges Europe has faced since the end of the cold war. A truly cross-European comparison of the evolution of national defence policies and armed forces remains a notable blind spot in the existing literature. This Handbook aims to fill this gap with fifty-one contributions on European defence and international security from around the world. The six parts focus on: country-based assessments of the evolution of the national defence policies of Europe’s major, medium, and lesser powers since the end of the cold war; the alliances and security partnerships developed by European states to cooperate in the provision of national security; the security challenges faced by European states and their armed forces, ranging from interstate through intra-state and transnational; the national security strategies and doctrines developed in response to these challenges; the military capabilities, and the underlying defence and technological industrial base, brought to bear to support national strategies and doctrines; and, finally, the national or multilateral military operations by European armed forces. The contributions to The Handbook collectively demonstrate the fruitfulness of giving analytical precedence back to the comparative study of national defence policies and armed forces across Europe.