South Yemen, officially the People's Democratic Republic of Yemen (PDRY), abbreviated to Democratic Yemen, was a country in South Arabia that existed in what is now southeast Yemen from 1967 until its unification with the Yemen Arab Republic in 1990. The sole communist state in the Middle East and the Arab world, it comprised the southern and eastern governorates of the present-day Republic of Yemen, including the islands of Perim, Kamaran, and the Socotra Archipelago. It bordered the Yemen Arab Republic to the northwest, Saudi Arabia to the north, Oman to the east, the Arabian Sea to the southeast, and the Gulf of Aden to the south. Its capital and largest city was Aden.
South Yemen's origins can be traced to 1874 with the creation of the British Colony of Aden and the Aden Protectorate, which consisted of two-thirds of present-day Yemen. Prior to 1937, what was to become the Colony of Aden had been governed as a part of British India, originally as the Aden Settlement subordinate to the Bombay Presidency and then as a Chief Commissioner's province. After the establishments of the Protectorate and Federation of South Arabia amidst rising Pan-Arab and anti-colonial sentiment, an armed rebellion began in 1963 that was led by the National Liberation Front (NLF) and the Front for the Liberation of Occupied South Yemen (FLOSY) against British colonial rule. The Federation and Protectorate of South Arabia were overthrown to become the People's Republic of Southern Yemen (PRSY) on 30 November 1967.
