The Lisbon Treaty, signed by the Heads of State and Government in December 2007, entered into force on 1 December 2009. The term “Lisbon Treaty” is shorthand for two new treaties:
The Treaty on the Functioning of the European Union” (“TFEU”) which amends and replaces the old Treaty establishing the
European Community (“TEC”); and
The Treaty on European Union (“TEU”), containing only the provisions on Common Foreign and Security Policy, which remains intergovernmental.