The document discusses the European Union's energy policy from a functionalist theory perspective. It provides background on how the EU has legislated energy policy for years and formally approved a comprehensive EU energy policy in 2005. Key points covered include: - The EU imports large amounts of energy each year, relying on single suppliers for gas which threatens its energy security. - EU energy policy aims to increase cooperation through technical experts rather than politicians to reduce conflicts and foster interdependence between countries. - Functional cooperation between states and international organizations can help solve energy problems and potentially lead to greater political integration over time through spill-over effects. - The common EU energy strategy is a good example of how regional integration and spill-over can occur