Achi Baba (Turkish: Alçıtepe) is a height dominating the Gallipoli Peninsula in Turkey, located in Çanakkale Province. Achi Baba was the main position of the Ottoman Turkish defenses in 1915 during the World War I Gallipoli campaign. Mediterranean Expeditionary Force Commander-in-Chief Sir Ian Hamilton had set the capture of Achi Baba as a stated priority for operations during the Allied landing at Cape Helles on 25 April 1915. Four separate attempts were made by the Allies to seize Achi Baba and the village of Krithia between April and July, but the heights remained in Turkish hands for the duration of the campaign.