Operation Althea

Operation Althea, formally European Union Force (EUFOR) Bosnia and Herzegovina, is a military deployment in Bosnia and Herzegovina to oversee the military implementation of the Dayton Agreement. It is the successor to NATO's SFOR and IFOR. The transition from SFOR to EUFOR was largely a change of name and commanders: 80% of the troops remained in place. It replaced SFOR on 2 December 2004.

General aspects
Civilian implementation of the Dayton Agreement is enforced by the Office of High Representative. In 2007, EUFOR had 600 troops from 22 countries, mostly from the countries of the European Union. There are however, additional troops from other countries such as Chile and Turkey.

EUFOR's commander is currently Major General Martin Dorfer (Austria), since March 2018. For this mission, the European Union Military Staff is using NATO's Supreme Headquarters Allied Powers Europe (SHAPE) as the EU's Operational Headquarters (OHQ) and is working through the Deputy to the Supreme Allied Commander Europe, a European officer.

The EUFOR assumed all the missions of the SFOR, except for the hunt for individuals indicted by the war criminals tribunal, notably Radovan Karadžić, former leader of Republika Srpska, and Ratko Mladić, their former military leader, which remained a mission for NATO through NATO Headquarters Sarajevo. The EUFOR does have police duties against organised crime, which is believed to be linked to suspected war criminals. It worked with the European Union Police Mission in Bosnia and Herzegovina (EUPM) and with the Bosnian Police. The European Union Special Representative in Bosnia and Herzegovina provides political guidance on military issues with a local political dimension to the EUFOR.

, the total force of EUFOR are at 900 troops from 18 nations. The Troop-Contributing Nations (TCNS) are as follows: from the EU: Austria, Belgium, Bulgaria, Czech Republic, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, The Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, and the UK; and partner nations from outside the EU: Australia, Albania, Chile, Macedonia, New Zealand, Switzerland, and Turkey.