United States. Central Intelligence Agency, CIA World Fact Book, 2004 — Paracel Islands (2004)
“ Introduction Paracel Islands Background: The Paracel Islands are surrounded by productive fishing grounds and by potential oil and gas reserves. In 1932, French Indochina annexed the islands and set up a weather station on Pattle Island; maintenance was continued by its successor, Vietnam. China has occupied the Paracel Islands since 1974, when its troops seized a South Vietnamese garrison occupying the western islands. The islands are claimed by Taiwan and Vietnam. ”
