He was the first Turkish diplomat in Japan and China and served as the ambassador of Turkey in various countries, including Romania and Egypt.
[5] Hulusi Fuat participated in World War I and was appointed as a medical assistant to the newly established Hilal-i Ahmer Hospital in Istanbul in 1915.
[5] He continued to work at the hospital's branches in Aleppo and in Jerusalem until the beginning of the Gallipoli campaign in 1915 and fought in the battle.
[8] His tenure was without any conflict during the reign of King Farouk, but after the monarchical state of Egypt was ended by the Free Officers Movement in 1952 the Egyptian press began to publish many articles against Togay and his wife, Emine Düriye Hanım, who was a member of the Muhammad Ali dynasty.
[9] One of such articles was written by Mohamed Hassanein Heikal in the 22 November 1953 issue of Akhbar el-Yom with the title This Ambassador Must Go.
[9] On 4 January 1954 Tugay was declared by the Egyptian revolutionary government led by Mohamed Naguib as a persona non-grata, becoming the first Turkish diplomat who was given this status.
[4][10] Therefore, he was asked to leave the country on 4 January due to his "undiplomatic behavior", and his wife, Emine Düriye Hanım, was accused of involving in plots against the government.
"[11] Hulusi Fuat married Emine Düriye Hanım (1897–1973), a member of the Egyptian royal family, in Munich on 15 September 1921.