 Complete the following phrase:  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, Turkeyusing its guarantor status arising from the trilateral accords of the 19591960 Zürich and London Agreement 