On 11 October 1922, thanks to British initiative, the terms of the armistice between Greece and Turkey were signed in Mudania in Propontis.

The immediate withdrawal of Greek troops from eastern Thrace and the preservation of European troops in the international zone of the Bosphorus and Constantinople until the signing of the peace treaty formed part of the agreement.
Two days later, Athens, despite the intention to reinforce the Thracian front and reorganize the army of Evros, was compelled to accept the decisions of Mudania, in the hope that the country would enjoy a better treatment by the Allies in the peace negotiations that would soon begin. Eleftherios Venizelos shared the same spirit when, invited by the Gonatas-Plastiras, Phokas Revolutionary Committee, undertook the leadership of the Greek delegation in the impending peace conference.

On 12 November 1922 the Greeks surrendered to the Allies the administration of eastern Thrace, which was surrendered, in turn, to the Turks. The Greek army had already withdrawn along with 250,000 civilians who thus became refugees, heading for Greece.