The accession of Greece to the EEC in 1981 required several years of negotiations. On the Greek side, clearly political resistance by leaders, which lasted until the adoption of the Single European Act, was replaced by a kind of institutional resistance that was reflected mainly in the circumventing of key principles, including the freedom of movement, in the name of reasons of State and if necessary with the help of European instruments. For example, the Greek State maintains a security-oriented administrative apparatus for Western Thrace (which borders Turkey) and its Muslim and Turkish-speaking minority. Three examples will be used: the political administrative supervision of this region, the Horizon program that aims to aid ethnically Greek refugees from the former USSR, and Directive 2003/109 of the European Council on long-term foreign residents, which was adopted during the Greek rotating presidency of the European Union.