In 1962 a dissatisfied tribal leader, Musallam bin Nufl (Mussalim bin Nafl), formed the Dhofar Liberation Front (DLF) and obtained arms and vehicles from Saudi Arabia. Saudi Arabia and Oman had earlier clashed over ownership of the Buraimi Oasis, and the Saudis had already supported two failed insurrections in the Jebel Akhdar in the interior of Oman in 1957-59. The DLF also received support from Imam Ghalib Bin Ali, the exiled Imam of Oman, who had led these earlier revolts.