114.No member has been admitted to the EU, the letter of which has hardly been sent to the whole territory. (87) However, the Greek Cypriot administration is not in a position to exercise its authority over approximately one third of the territory it claims to represent. The difficulties that could result from this would be unprecedented in the history of the Union. 94.The main points of the future Cypriot Constitution were included in the basic structure agreed in Zurich, which was completed at the London Conference of 1959. (68) As already stated, this Conference also adopted `agreed measures` providing for (inter alia) a Joint Commission in Cyprus to prepare a draft Constitution containing these articles and the relevant provisions of the other agreements concluded in Zurich and London. The unilateral usurpation of authority by the Greek Cypriots was a clear violation of the Constitution and the contractual obligations accepted by the Greek Cypriot community. The Greek Cypriot regime had violated article 182 of the Constitution, which stipulated that the basic articles “may under no circumstances be amended, whether by amendment, addition or repeal”, and which required a simultaneous two-thirds majority of the Cypriot-Cypriot and Turkish Cypriot members of the House of Representatives for all other amendments. At the same time, their actions were contrary to Article I of the Treaty of Guarantee, in which the Republic of Cyprus undertook to “ensure . . .