Regular Besiktas 2022-23 home shirt with face of Mustafa Kemal Atatürk centered on the chest to celebrate August 30 Vict...ory Day. Decisive victory happened in the Battle of Dumlupınar, the last battle in the Greco-Turkish War, on 30 August 1922 - 100 years ago. Following the battle, Greek presence in Anatolia ended. Victory Day has been celebrated as an official holiday since 1926, and was first celebrated on 30 August 1923.