This chapter examines for the first time Athens’ role and participation in the Conference on Security and Cooperation in Europe (CSCE), a seminal event for East-West relations in Cold War Europe. Greece had a vested interest in détente. The relaxation of international tensions served to alleviate Greece’s security problem by neutralizing the threat that the Warsaw Pact represented on the northern borders of the country. However, its preoccupation with Cyprus made Athens see the CSCE as another forum where it could promote its national interests by putting international pressure on Ankara. Athens adopted a similar approach to the Belgrade follow-up meeting, but the unwillingness of the other delegations to see Cyprus entangled in the chaotic discussions of the conference and the realization that détente should not be taken for granted made Greece more inclined to treat the CSCE as the East-West exercise that it really was. Greece’s imminent accession to the EEC and above all the fact that Athens shared the Nine’s concerns to avoid a new Cold War in Europe, compelled it to coordinate its positions with the Nine and join their efforts to safeguard European détente from superpower tensions.