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
2004 enlargement of the European Union European Union, while the northern occupied area is recognised only by Turkey. Cyprus began talks to join the EU, which provided impetus to solve the dispute. With the agreement of the Annan Plan for Cyprus, it was hoped that the two countries would join the EU together as a single "United Cyprus Republic". Turkish Cypriots supported the plan. However, in a referendum on 24 April 2004 the Greek Cypriots rejected the plan. Thus, a week later, the Republic of Cyprus joined the EU with political issues unresolved. Legally, as the northern republic is not recognised by the EU, the entire