After the establishment of the Republic of Turkey on 29 October 1923, plans were made to form a modern air force. Originally consisting of three normal and one naval aviation units, and an air school, the number of units was increased to 10 normal and three naval aviation units. Starting in 1924, personnel were sent abroad for flight education. In 1925, the Air School was re-established in Eskişehir and its first students graduated that same year. The Inspectorate of Air Forces was reorganized as the Undersecretariat of the Ministry of Defense in 1928 and new schools were found for non-pilot personnel. Some personnel were sent to the United Kingdom and France for training; others were sent to the United States and Italy in 1930.