Greek–Turkish relations regime, there were periodic crises with Turkey, which suspected that the Greek regime was planning a pro-unification coup in Cyprus. A 1971 Turkish law nationalized religious high schools, and closed the Halki seminary on Istanbul's Heybeli Island which had trained Greek Orthodox clergy since 1844. On July 15, 1974, a band of Greek Cypriot nationalists formed EOKA B, advocating Enosis (Union) with Greece and, backed by the Greek military junta in Athens, staged a coup against the Cypriot President and Archbishop Makarios. An ex-EOKA man, Nikos Sampson was appointed President. On July 20, Turkey—using its guarantor status arising from the
Accession of Turkey to the European Union after 1974), while the Greek Cypriots who lost their property after the Turkish invasion would be granted only a restricted right of return to the north following the island's proposed reunification. Although the outcome received much criticism in the EU as well, the Republic of Cyprus was admitted into the EU a week after the referendum. The Turkish government has refused to officially recognise the Republic of Cyprus until the removal of the political and economic blockade on the Turkish Republic of Northern Cyprus. Turkey's non-recognition of the Republic of Cyprus has led to complications within the Customs Union. Under