On 15 July 1974, the Greek military junta under Dimitrios Ioannides carried out a coup d'etat in Cyprus, to unite the island with Greece. The coup ousted president Makarios III and replaced him with pro-enosis nationalist Nikos Sampson. In response to the coup, five days later, on 20 July 1974, the Turkish army invaded the island, citing a right to intervene to restore the constitutional order from the 1960 Treaty of Guarantee. This justification has been rejected by the United Nations and the international community.
Which organization rejected the justification used by Turkey to invade?
United Nations