evidence: The Spratly Islands (Filipino: Kapuluan ng Kalayaan;[1] Mandarin Chinese: 南沙群島/南沙群岛; pinyin: Nánshā Qúndǎo; Malay: Kepulauan Spratly; Vietnamese: Quần đảo Trường Sa) are a disputed archipelago in the South China Sea. Composed of islands, islets, cays,[2] and more than 100 reefs, sometimes grouped in submerged old atolls,[3] the archipelago lies off the coasts of the Philippines, Malaysia, and southern Vietnam. Named after the 19th-century British whaling captain Richard Spratly who sighted Spratly Island in 1843, the islands contain less than 2 km2 (490 acres) of naturally occurring land area, which is spread over an area of more than 425,000 km2 (164,000 sq mi). The Spratly Islands are one of the major archipelagos in the South China Sea which complicate governance and economics in this part of Southeast Asia due to their location in strategic shipping lanes. The islands are largely uninhabited, but offer rich fishing grounds and may contain significant oil and natural gas reserves, and as such are important to the claimants in their attempts to establish international boundaries. Some of the islands have civilian settlements, but of the approximately 45 islands, cays, reefs and shoals that are occupied, all contain structures that are occupied by military forces from Malaysia, China (PRC), Taiwan (ROC), the Philippines, and Vietnam. Additionally, Brunei has claimed an exclusive economic zone in the southeastern part of the Spratly Islands, which includes the uninhabited Louisa Reef.