On February 4,2008, shortly before Kosovo’s controversial unilateral secession from Serbia on February 17 of that year,1 the Council of the European Union (EU) adopted a Joint Action creating the European Union Rule of Law Mission in Kosovo/EULEX (hereinafter EULEX), the largest and most important mission thus far undertaken within the common European foreign and defense policy.2 Although EULEX is first and foremost a European undertaking, it is also strongly backed by the United States, which agreed to shoulder 25 percent of the operating costs while the remaining costs would be shared by European and other states.3 In October 2008, the U.S. Department of State further agreed to provide EULEX with eighty police officers and up to eight judges and prosecutors.4