and later against the Greeks were made possible by a steady supply of gold and armaments to the Kemalists from the Russian Bolshevik government from the autumn of 1920 onwards. After a series of battles during the Greco-Turkish War, the Greek army advanced as far as the Sakarya River, just eighty kilometers west of the GNA. On 5 August 1921, Atatürk was promoted to commander in chief of the forces by the GNA. The ensuing Battle of the Sakarya was fought from 23 August–13 September 1921 and ended with the defeat of the Greeks. After this victory, Atatürk was given the rank of Mareşal and the title of Gazi by the Grand National Assembly on 19 September 1921. The Allies, ignoring the extent of Atatürk's successes, hoped to impose a modified version of the Treaty of Sèvres as a peace settlement on Angora, but the proposal was rejected. In August 1922, Atatürk launched an all-out attack on the Greek lines at Afyonkarahisar in the Battle of Dumlupınar, and Turkish forces regained control of İzmir on 9 September 1922. On 10 September 1922, Atatürk sent a telegram to the League of Nations stating that the Turkish population was so worked up that the Ankara Government would not be responsible for the ensuing massacres. Establishment of the Republic of Turkey The Conference of Lausanne began on 21 November 1922. Turkey, represented by İsmet İnönü of the GNA, refused any proposal that would compromise Turkish sovereignty, such as the control of Turkish finances, the Capitulations, the Straits and other issues. Although the conference paused on 4 February, it continued after 23 April mainly focusing on the economic issues. On 24 July 1923, the Treaty of Lausanne was signed by the Powers with the GNA, thus recognising the latter as the government of Turkey. On 29 October 1923, the Republic of Turkey was proclaimed. Since then, Republic Day has been celebrated as a national holiday on that date. Presidency With the establishment of the Republic of Turkey, efforts to modernise the country started. The new government analyzed the institutions and constitutions of Western states such as France, Sweden, Italy, and Switzerland and adapted them to the needs and characteristics of the Turkish nation. Highlighting the public's lack of knowledge regarding Atatürk's intentions, the public cheered: "We are returning to the days of the first caliphs." Atatürk placed Fevzi Çakmak, Kâzım Özalp, and İsmet İnönü