On 28 July/10 August 1920 in Sevres Town Hall, the representatives of the Allies and the Allied Powers signed the Peace Treaty with Turkey, which is known as Treaty of Sevres.

The Treaty contained thirteen clauses concerning the League of Nations, the borders of Turkey and political terms for the status of certain areas and countries and the protection of minorities. It also contained military, maritime, aviation, public finance and economic terms, that concerned the conditions of work, transport networks and many other issues. Lastly, the Treaty dealt with the problem of prisoners and fatal casualties of war and war reparations.

Greece in the Treaty of Sevres
With the Treaty of Sevres Greece gained its largest territorial gain since the struggle for Independence to our own day. Its borders extended as far as Chatalja, in the outskirts of Constantinople. Its rule was extended to the islands of the north-eastern Aegean, including the islands Imvros and Tenedos (ratified). The Smyrna zone remained under Ottoman rule but Greece held on to government duties. A plebiscite would be held after five years, for the local population to decide whether they wished union with Greece. By a special Greco-Italian treaty, the Dodecanese islands, except Rhodes, were ceded by the Italians to Greece. Rhodes won its autonomy and acquired the right to decide its own fate, after the elapse of fifteeen years from the signing of the agreement.

With another intenational treaty, the treaty 'concerning Thrace', the annexation of western Thrace to Greece was ratified, as the Bulgarians had already surrendered their sovereign rights to the Allies with the Treaty of Neuilly.
In Cyprus the status of British sovereignty was consolidated.
With a third treaty between Greece and the Allied Powers the protection of national minorities living in territories ceded to Greece was consolidated.

The Treaty of Sevres, signed by the Sultan's government in Constantinople, was not naturally endorsed by the Kemalists, who wished to liberate Turkey from foreigners and the prevent partion.

Almost immediately after signing the Treaty the Allied Powers favoured its repeal, as their interests by now and developments had lead them on a different course. The only military force that would implement the terms was the Greek campaign corps.