Öz
In this study, the Battle of Çiğiltepe, one of the important stages of the Great Offensive, the capture of Çiğiltepe from the Greeks and the cleansing of the Sinanpaşa Plain from the enemy were discussed. The study was evaluated by making use of archive documents from the archives of the Republic Archive, ATASE Archive and the Turkish Historical Society Archive, as well as thesis, books and articles prepared on this subject. The victories of the Turkish Army in the Great Offensive are the result of planned preparations since the Battle of Sakarya. Before the Battle of Sakarya, Mustafa Kemal Pasha, while asking for full authority from the Grand National Assembly of Turkey, started to think about which war plans could be used to defeat the enemy on all fronts. Thus, the works to be done in order to clear Western Anatolia from the enemy were put into practice, respectively. It can be said that the Great Offensive was a war that provided the foundation of the Turkish Republic. Although the Turkish Army won the Battle of Sakarya on September 13, 1921, it did not have the means and ability to engage in a more difficult and longer offensive operation. It had many shortcomings in terms of training, number of soldiers and equipment. Since Mustafa Kemal Pasha knew this situation, on the one hand he prepared the army for a new attack, on the other hand he continued his international diplomacy studies. In the Great Offensive, an attack would be launched with the 1st and 2nd Army units, the 1st Army would attack the Greek troops settled in the Afyon region, and the Greek troops in the north of Afyon and the Greek troops in the Kütahya region, the 2nd Army units would be forced to flee from the hills where the enemy settled to the Sinanpaşa plain. It was planned to destroy the enemy here by Turkish troops coming from the south and north.