From the Summary: "This report describes the European Union (EU), its evolution, governing institutions, trade policy, and efforts to forge common foreign and defense policies. The report also addresses the EU-U.S. and EU-NATO relationships, which may be of interest to the second session of the 110th Congress. It will be updated as events warrant. For more information, see CRS [Congressional Research Service] Report RS21344, 'European Union Enlargement', by Kristin Archick, and CRS Report RL34381, 'European Union-U.S. Trade and Investment Relations: Key Issues', coordinated by Raymond Ahearn."
CRS Report for Congress, RS21372