Another of Faisal's motivations in appointing al-Hashimi was his view that al-Hashimi's ardent nationalist position made him well-suited to handle the Turkish-Iraqi territorial dispute over the former Mosul Vilayet. At the time of al-Hashimi's appointment, the Turkish government agreed to allow the League of Nations to send a commission to then-British-held Mosul to determine which country its inhabitants favored joining and to make recommendations regarding a final settlement of the territorial dispute. The commission decided in July 1925 that Mosul should remain part of Iraq, that Iraq should remain under British Mandatory rule for 25 years and that Kurdish cultural rights and self-administration be recognized by the Iraqi state. Al-Hashimi was replaced by Abd al-Muhsin as-Sa'dun in June. Al-Hashimi opposed as-Sa'dun's government and in November 1925 founded the People's Party ("hizb ash-sha'b") to garner opposition to the administration. The People's Party opposed British Mandatory rule and pressed for independence and reform.