The EUFOR or European Union Force is an international military force under the supervision of the European Council. It is best known for operation Althea; their current involvement in Bosnia and Herzegovina to oversee the military implementation of the Dayton Agreement. It replaced the NATO-led SFOR on the 2nd of December 2004. The EUFOR is led by the Political and Security Committee, and the civilian implementation of the agreement lies in the hands of the Office of High Representative. The efforts of both are coordinated by the High Representative for the Common Foreign and Security Policy, Javier Solana.
EUFOR has around 7,000 personnel from 33 countries, mostly from the countries of the European Union. There are however, additional troops from other European countries and also some from Canada and elsewhere. As of 2005, this is the largest purely European military operation.