This chapter provides an overview of the historical evolution and the post-Lisbon institutional and legal characteristics of the Common Foreign and Security Policy (CFSP), including the Common Security and Defence Policy (CSDP). Specific attention is paid to the specificity and sui generis nature of the CFSP as an EU competence and to the instruments at the disposal of the EU under this policy. The limited but growing jurisdiction of the Court of Justice in CFSP is illustrated with recent case law. The legal and institutional underpinnings of the CSDP are discussed, as well as its post-Lisbon dynamics, notably operations, international agreements, permanent structured cooperation, and mutual assistance.