Hasan Izzet Born in a family of Turkish origin[3]1871 to mother Süreyya Hanım, and father Ali Muhsin Pasha in Aksaray neighborhood of Istanbul.

He graduated from the Ottoman Military Academy (Mekteb-i Füsûn-u Harbiyye-i Şâhâne) in 1890 and the Staff College (Mekteb-i Erkân-ı Harbiye-i Şâhâne, present day: Harp Akademisi) on 23 March 1893 as a Staff Captain (Erkân-ı Harp Yüzbaşısı).

[1] He was appointed to the fourth department of the General Staff by the order of Sultan Abdul Hamid II on 14 April 1894.

On 7 May 1895, he was promoted to the rank of Senior Captain (Kolağası) and on 12 May 1895, he participated in the military staff excursion to Üsküp (present day: Skopje).

[2] During the First Balkan War, he went to Babaeski and was appointed the commander of the 9th Division by the order of the Eastern Army (Şark Ordusu).

He took part in battles at Petra (present day: Kayalı village in the central district of Kırklareli Province) on 9–10 October 1912 and Taştabya, Vize and Çatalca.