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
Northern Cyprus their respective plans for (union with Greece) and (Turkish for "partition"). The agreement involved Cyprus being governed under a constitution which apportioned Cabinet posts, parliamentary seats and civil service jobs on an agreed ratio between the two communities. Within three years, tensions began to show between the Greek Cypriots and Turkish Cypriots in administrative affairs. In particular, disputes over separate municipalities and taxation created a deadlock in government. In 1963 President Makarios proposed unilateral changes to the constitution, via 13 amendments. Turkey and the Turkish Cypriots rejected the proposed amendments, claiming that this was an attempt to settle constitutional disputes