In 1964, a separatist revolt began in Dhofar province. Aided by Communist and leftist governments such as the former South Yemen (People's Democratic Republic of Yemen), the rebels formed the Dhofar Liberation Front, which later merged with the Marxist-dominated Popular Front for the Liberation of Oman and the Arabian Gulf (PFLOAG). The PFLOAG's declared intention was to overthrow all traditional Persian Gulf régimes. In mid-1974, the Bahrain branch of the PFLOAG was established as a separate organisation and the Omani branch changed its name to the Popular Front for the Liberation of Oman (PFLO), while continuing the Dhofar Rebellion.