Edited sentence: According to a British military report made in 1939, the following names were changed by the Persian government:.After the command of Reza Shah, the name of many places, cities and villages was changed, including the name of the entire region which was changed from Arabistan to Khuzestan.Among the many post-occupation projects, there was the project dedicated to the curtailment and shrinkage of the area of Arabistan.Arabistan  Khuzestan.Bani Turuf  Dasht-e-Mishan.Busaytin  Bostan.Falahiyah  Shadegan.Following the occupation at 1925, a lot of projects were started in this region by Reza Shah Pahlavi.Gach Qaraguli  Gachsaran.Huwayzah  Hoveyzeh.Khafajiyyah  Susangerd.Khazalabad  Khosrowabad.Mal Amir  Izeh.Mohammerah  Khorramshahr.One of the oldest and most effective projects was the persianization of this area.Original  Post-Persianization.Salehabad  Andimeshk.The Pahlavi government split the area to multiple provinces, namely: Ilam, Chahar Mahaal and Bakhtiari, Kohgiluyeh and Boyer-Ahmad