Victory Day is a national holiday in Turkey commemorating the decisive victory in the Battle of Dumlupınar , on 30 August 1922 .
The outcome of the battle , which took place in Kütahya province in western Turkey , determined the overall outcome of the Turkish War of Independence . 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