Halil Sami Bey (1866 – 1925) was an Ottoman Army Colonel (Miralay) who served in the First World War. Halil Sami was in charge of the Ottoman 9th Division on the morning of 25 April 1915 known as The First Battle of Krithia. He was responsible for a very difficult section of the peninsula. His division faced the British 29th Division landing on 5 individual beaches with an initial force of 6 infantry battalions and 2 infantry regiments. The total force on the beaches were the 6th Company defending Sarıtepe Altı and İkiz Koyu, 12th, 10th, 9th and 11th Companies defending Teke koyu and Ertuğrul koyu with a platoon defending the Zığındere:Sığındere (Gully Ravine). The 10th Company, with the heroic efforts of Yahya Çavuş who fought against 3000 British infantry with one squad under his command