|The Spratly Islands|
|Location||South China Sea|
|Total islands||>750 islands, islets, etc.|
|Major islands||Itu Aba Island
|Area||~4 km2 (1.5 mi2)|
|Coastline||926 km (575 mi)|
|Highest point||Southwest Cay
4 metres (13 ft)
|People's Republic of China|
|Prefecture-level city||Sansha, Hainan|
|Republic of China (Taiwan)|
|Population||No indigenous peoples|
|Ethnic groups||Various ethnicities|
|Part of a series on the|
Spratly Islands military occupations map
|Vietnamese||Quần Đảo Trường Sa|
Gugusan Semarang Peninjau
|Tagalog||Kapuluan ng Kalayaan|
The Spratly Islands (Chinese: Nansha islands, Filipino: Kapuluan ng Kalayaan, Malay: Kepulauan Spratly and Vietnamese: Quần đảo Trường Sa) are a disputed group of more than 750 reefs, islets, atolls, cays and islands in the South China Sea. The archipelago lies off the coasts of the Philippines, Malaysia (Sabah), and southern Vietnam. Named after the 19th-century British explorer Richard Spratly who sighted them in 1843, the islands contain approximately 4 km2 (1.5 mi2) of actual land area spread over a vast area of more than 425,000 km2 (164,000 mi2).
The Spratlys are one of the three major archipelagos in the South China Sea which comprise of more than 30,000 islands and reefs, and which complicate governance and economics in this part of Southeast Asia. Such small and remote islands have little economic value in themselves, but are important to the claimants in their attempts to establish international boundaries. The islands have no indigenous inhabitants, but offer rich fishing grounds, and may contain significant oil and natural gas reserves.
The northeast of the Spratlys are known to mariners as Dangerous Ground, and are characterised by many low islands, sunken reefs and atolls awash, with reefs often rising abruptly from ocean depths greater than 1000m - all of which makes the area dangerous for navigation.
In addition to various territorial claims, some of the features have civilian settlements, but of the approximately 45 islands, reefs, cays and other features that are occupied, all contain structures which are occupied by military forces (from the People's Republic of China, the Republic of China (Taiwan), Vietnam, the Philippines and Malaysia). Additionally, Brunei has claimed (but does not occupy) an exclusive economic zone in the southeastern part of the Spratlys which includes the Louisa Reef. These claims and occupations have led to escalating tensions between these countries over the status and "ownership" of the islands. See Spratly Islands dispute (and this article) for more information about the politics and history, and List of maritime features in the Spratly Islands for more information about the geography and geographical features.
- 1 Geographic and economic overview
- 2 Geology
- 3 Ecology
- 4 History
- 5 Transportation and communication
- 6 Gallery
- 7 See also
- 8 References
- 9 Further reading
- 10 External links
Geographic and economic overview
The Spratly Islands contain almost no significant arable land, have no indigenous inhabitants, and very few of the islands have a permanent drinkable water supply. Natural resources include fish, and guano, as well as the possible potential of oil and natural gas reserves. Economic activity has included commercial fishing, shipping, guano mining, and more recently, tourism.
The Spratlys are located near several primary shipping lanes.
The Spratly Islands consist of reefs, banks and shoals that consist of biogenic carbonate. These accumulations of biogenic carbonate lie upon the higher crests of major submarine ridges that are uplifted fault blocks known by geologists as horsts. These horsts are part of a series of parallel and en echelon, half-grabens and rotated fault-blocks. The long axes of the horsts, rotated fault blocks and half-grabens form well-defined linear trends that lie parallel to magnetic anomalies exhibited by the oceanic crust of the adjacent South China Sea. The horsts, rotated fault blocks, and the rock forming the bottoms of associated grabens consist of stretched and subsided continental crust that is composed of Triassic, Jurassic, and Cretaceous strata that include calc-alkalic extrusive igneous rocks, intermediate to acid intrusive igneous rocks, sandstones, siltstones, dark-green claystones, and metamorphic rocks that include biotite-muscovite-feldspar-quartz migmatites and garnet-mica schists.
The dismemberment and subsidence of continental crust into horsts, rotated fault blocks and half-grabens that underlie the Spratly Islands and surrounding sea bottom occurred in 2 distinct periods. They occurred as the result of the tectonic stretching of continental crust along underlying deeply rooted detachment faults. During the Late Cretaceous and Early Oligocene, the earliest period of tectonic stretching of continental crust and formation of horsts, half-grabens, and rotated fault-blocks occurred in association the rifting and later sea-floor spreading that created the South China Sea. During the Late Oligocene-Early Miocene additional stretching and block faulting of continental crust occurred within the Spratly Islands and adjacent Dangerous Ground. During and after this period of tectonic activity, corals and other marine life colonised the crests of the horsts and other ridges that lay in shallow water. The remains of these organisms accumulated over time as biogenic carbonates that comprise the current day reefs, shoals and cays of the Spratly Islands. Starting with their formation in Late Cretaceous, fine-grained organic-rich marine sediments accumulated within the numerous submarine half-grabens that underlie sea bottom within the Dangerous Ground region.
The geological surveys show localised areas within the Spratly Islands region are favourable for the accumulation of economic oil and gas reserves. They include thick sequences of Cenozoic sediments east of the Spratly Islands. Southeast and west of them, there also exist thick accumulations of sediments that possibly might contain economic oil and gas reserves lie closer to the Spratly Islands.
In some cays in the Spratly Islands, the sand and pebble sediments form the beaches and spits around the island. Under the influence of the dominant wind direction which changes seasonally, these sediments move around the island to change the shape and size of the island. For example, Spratly Island is larger during the northeast monsoon, (about 700 x 300 meters), and smaller during the southwest monsoon, (approximately 650 x 320 meters).
Some islands may contain fresh groundwater fed by rain. Groundwater levels fluctuate during the day with the rhythm of the tides.
Little vegetation grows on these islands, which are subject to intense monsoons. Larger islands are capable of supporting tropical forest, scrub forest, coastal scrub and grasses. It is difficult to determine which species have been introduced or cultivated by humans. Taiping Island (Itu Aba) was reportedly covered with shrubs, coconut, and mangroves in 1938; pineapple was also cultivated there when it was profitable. Other accounts mention papaya, banana, palm, and even white peach trees growing on one island. A few islands which have been developed as small tourist resorts had soil and trees brought in and planted where there was none.
A total of 2,927 marine species were recorded in the Spratly Sea, including: 776 benthic species, 382 species of hard coral, 524 species of marine fish, 262 species of algae and sea grass, 35 species of seabirds, 20 species of marine mammals and sea turtles, etc.
Terrestrial vegetation in the islands includes 103 species of vascular plants of Magnolia branches (Magnoliophyta) of 39 families and 79 genera.
The islands that do have vegetation provide important habitats for many seabirds and sea turtles.
Both the Green Turtle (Chelonia mydas, endangered) and the Hawksbill Turtle (Eretmochelys imbricata, critically endangered) formerly occurred in numbers sufficient to support commercial exploitation. These species reportedly continue to nest even on islands inhabited by military personnel (such as Pratas) to some extent, though it is believed that their numbers have declined.
Seabirds use the islands for resting, breeding, and wintering sites. Species found here include: Streaked Shearwater (Calonectris leucomelas), Brown Booby (Sula leucogaster), Red-Footed Booby (S. sula), Great Crested Tern (Sterna bergii), and White Tern (Gygis alba). Little information is available regarding the current status of the islands' seabird populations, though it is likely that birds may divert nesting sites to smaller, less disturbed islands. Bird eggs cover the majority of Song Tu, a small island in the eastern Danger Zone.
Political instability, tourism and the increasing industrialisation of neighbouring countries has led to serious disruption of native flora and fauna, over-exploitation of natural resources, and environmental pollution. Disruption of nesting areas by human activity and/or by introduced animals, such as dogs, has reduced the number of turtles nesting on the islands. Sea turtles are also slaughtered for food on a significant scale. The sea turtle is a symbol of longevity in Chinese culture and at times the military personnel are given orders to protect the turtles.
Heavy commercial fishing in the region incurs other problems. Although it has been outlawed, fishing methods continue to include the use of bottom trawlers fitted with chain rollers. In addition, during a recent[timeframe?] routine patrols[by whom?], more than 200 kg of Potassium cyanide solution was confiscated from fishermen who had been using it for fish poisoning. These activities have a devastating impact on local marine organisms and coral reefs.
Some interest has been taken[by whom?] in regard to conservation of these[which?] island ecosystems. J.W. McManus[who?] has explored the possibilities of designating portions of the Spratly Islands as a marine park. One region of the Spratly Archipelago, named Truong Sa, was proposed by Vietnam's Ministry of Science, Technology, and the Environment (MOSTE) as a future protected area. The site, with an area of 160 km2 (62 mi2), is currently managed by the Khanh Hoa Provincial People's Committee of Vietnam.
Military groups in the Spratlys have engaged in environmentally damaging activities such as shooting turtles and seabirds, raiding nests and fishing with explosives. The collection of rare medicinal plants, collecting of wood, and hunting for the wildlife trade are common threats to the biodiversity of the entire region, including these islands. Coral habitats are threatened by pollution, over-exploitation of fish and invertebrates, and the use of explosives and poisons as fishing techniques.
Chinese texts of the 12th century record these islands being a part of Chinese territory and that they had earlier (206 BC) been used as fishing grounds during the Han Dynasty. Further records show the islands as inhabited at various times in history by Chinese and Vietnamese fishermen, and during the second world war by troops from French Indochina and Japan. However, there were no large settlements on these islands until 1956, when Filipino adventurer Tomas Cloma Senior decided to "claim" a part of Spratly islands as his own, naming it the " Free Territory of Freedomland".
The first possible human interaction with the Spratly Islands dates back between 600 BCE to 3 BCE. This is based on the theoretical migration patterns of the people of Nanyue (southern China and northern Vietnam) and Old Champa kingdom who may have migrated from Borneo, which may have led them through the Spratly Islands.
Ancient Chinese maps record the "Thousand Li Stretch of Sands"; Qianli Changsha (千里長沙) and the "Ten-Thousand Li of Stone Pools"; Wanli Shitang (萬里石塘), which China today claims refers to the Spratly Islands. The Wanli Shitang have been explored by the Chinese since the Yuan Dynasty and may have been considered by them to have been within their national boundaries. They are also referenced in the 13th century, followed by the Ming Dynasty. When the Ming Dynasty collapsed, the Qing Dynasty continued to include the territory in maps compiled in 1724, 1755, 1767, 1810, and 1817.
A Vietnamese map from 1834 also combines the Spratly and Paracel Islands into one region known as "Vạn Lý Trường Sa", a feature commonly incorporated into maps of the era (萬里長沙) ‒ that is, a combination of half of the 2 aforementioned Chinese island names, "Wanli" and "Changsha". According to Hanoi, Vietnamese maps record Bãi Cát Vàng (Golden Sandbanks, referring to both the Spratly and Paracel Islands) which lay near the Coast of the central Vietnam as early as 1838. In Phủ Biên Tạp Lục (The Frontier Chronicles) by scholar Le Quy Don, both Hoàng Sa and Trường Sa were defined as belonging to the Quảng Ngãi District. He described it as where sea products and shipwrecked cargoes were available to be collected. Vietnamese text written in the 17th century referenced government-sponsored economic activities during the Le Dynasty, 200 years earlier. The Vietnamese government conducted several geographical surveys of the islands in the 18th century.
Despite the fact that China and Vietnam both made a claim to these territories simultaneously, at the time, neither side was aware that its neighbour had already charted and made claims to the same stretch of islands.
The islands were sporadically visited throughout the 19th and early 20th centuries by mariners from different European powers (including Richard Spratly, after whom the island group derives its most recognisable English name). However, these nations showed little interest in the islands.
British naval captain James George Meads in the 1870s laid claim to the islands, proclaiming a micronation called Republic of Morac-Songhrati-Meads. Descendants of Meads have continued to claim legitimacy over the islands, and continue to attempt to claim ownership of the island's resources.
In 1883, German boats surveyed the Spratly and the Paracel Islands but eventually withdrew the survey, after receiving protests from the Guangdong government representing the Qing Dynasty. Many European maps before the 20th century do not even mention this region.
Military conflict and diplomatic dialogues
The following are political divisions for the Spratly Islands claimed by various area nations (in alphabetical order):
- Brunei: Part of Brunei's Exclusive Economic Zone
- China: Part of Sansha city, Hainan province
- Malaysia: Part of Sabah state
- Philippines: Part of Palawan province
- Taiwan (Republic of China): Part of Kaohsiung municipality
- Vietnam: Part of Khánh Hòa Province
In 1933, France asserted its claims from 1887 to the Spratly and Paracel Islands on behalf of its then-colony Vietnam. It occupied a number of the Spratly Islands, including Taiping Island, built weather stations on 2 of the islands, and administered them as part of French Indochina. This occupation was protested by the Republic of China (ROC) government because France admitted finding Chinese fishermen there when French warships visited 9 of the islands. In 1935, the ROC government also announced a sovereignty claim on the Spratly Islands. Japan occupied some of the islands in 1939 during World War II, and it used the islands as a submarine base for the occupation of Southeast Asia. During the Japanese occupation, these islands were called Shinnan Shoto (新南諸島), literally the New Southern Islands, and together with the Paracel Islands (西沙群岛), they were put under the governance of the Japanese colonial authority in Taiwan.
Japan occupied the Paracels and the Spratlys from February 1939 to August 1945.
In November 1946, the ROC sent naval ships to take control of the islands after the surrender of Japan. It had chosen the largest and perhaps the only inhabitable island, Taiping Island, as its base, and it renamed the island under the name of the naval vessel as Taiping. Also following the defeat of Japan at the end of World War II, the ROC re-claimed the entirety of the Spratly Islands (including Taiping Island) after accepting the Japanese surrender of the islands based on the Cairo and Potsdam Declarations. Japan had renounced all claims to the islands in the 1951 San Francisco Peace Treaty together with the Paracels, Pratas and other islands captured from the Chinese, and upon these declarations, the government of the Republic of China reasserted its claim to the islands. The KMT force of the ROC government withdrew from most of the Spratly and Paracel Islands after they retreated to Taiwan from the opposing Communist Party of China due to their losses in the Chinese Civil War and the founding of the People's Republic of China (PRC) in 1949. The ROC quietly withdrew troops from Taiping Island in 1950, but then reinstated them in 1956 in response to Tomas Cloma's sudden claim to the island as part of Freedomland. As of 2013[update], Taiping Island is administered by the ROC.
In 1988, the Vietnamese and Chinese navies engaged in a skirmish in the area of Johnson South Reef (also called Yongshu reef in China and Mabini reef in Philippines).
It was unclear whether France continued its claim to the islands after WWII, since none of the islands, other than Taiping Island, was habitable. The South Vietnamese government took over the Trường Sa administration after the defeat of the French at the end of the First Indochina War. In 1958, the PRC issued a declaration defining its territorial waters, which encompassed the Spratly Islands. North Vietnam's prime minister, Pham Van Dong, sent a formal note to Zhou Enlai, stating that the Government of the Democratic Republic of Vietnam (DRV) respected the Chinese decision regarding the 12 nmi (22 km; 14 mi) limit of territorial waters. While accepting the 12-nmi principal with respect to territorial waters, the letter did not actually address the issue of defining actual territorial boundaries.
In 1999, a Philippine navy ship (Number 57 - BRP Sierra Madre) was purposely run aground near Second Thomas Shoal to enable establishment of an outpost. As of 2014[update] it had not been removed, and Filipino troops have been stationed aboard since the grounding.
On 23 May 2011, the President of the Philippines, Benigno Aquino III, warned visiting Chinese Defence Minister Liang Guanglie of a possible arms race in the region if tensions worsened over disputes in the South China Sea. Aquino said he told Liang in their meeting that this could happen if there were more encounters in the disputed and potentially oil-rich Spratly Islands.
In May 2011, Chinese patrol boats attacked 2 Vietnamese oil exploration ships near the Spratly Islands. Also in May 2011, Chinese naval vessels opened fire on Vietnamese fishing vessels operating off East London Reef (Da Dong). The 3 Chinese military vessels were numbered 989, 27 and 28, and they showed up with a small group of Chinese fishing vessels. Another Vietnamese fishing vessel was fired on near Fiery Cross Reef (Chu Thap). The Chief Commander of Border Guards in Phu Yen Province, Vietnam reported that a total of 4 Vietnamese vessels were fired upon by Chinese naval vessels.[verification needed] These incidents involving Chinese forces sparked mass protests in Vietnam, especially in Hanoi and Ho Chi Minh City, and in various Vietnamese communities in the West (namely in the US state of California and in Paris) over attacks on Vietnamese citizens and the intrusion into what Vietnam claimed was part of its territory.
Various factions of the Muslim Moro people are waging a war for independence against the Philippines. The website of the separatist Moro National Liberation Front (MNLF) of Nur Misuari declared its support for China against the Philippines in the South China Sea dispute, calling both China and the Moro people as victims of Philippine colonialism, and noting China's history of friendly relations with the Moros. The MNLF website also denounced America's assistance to the Philippines in their colonisation of the Moro people in addition to denouncing the Philippines claims to the islands disputed with China, and denouncing America for siding with the Philippines in the dispute, noting that in 1988 China "punished" Vietnam for attempting to set up a military presence on the disputed islands, and noting that the Moros and China maintained peaceul relations, while on the other hand the Moros had to resist other colonial powers, having to fight the Spanish, fight the Americans, and fight the Japanese, in addition to fighting the Philippines.
Champa historically had a large presence in the South China Sea. The Vietnamese broke Champa's power in an invasion of Champa in 1471, and then finally conquered the last remnants of the Cham people in an invasion in 1832. A Cham named Katip Suma who received Islamic education in Kelantan declared a Jihad against the Vietnamese, and fighting continued until the Vietnamese crushed the remnants of the resistance in 1835. The Cham organisation Front de Libération du Champa was part of the United Front for the Liberation of Oppressed Races, which waged war against the Vietnamese for independence in the Vietnam War along with the Montagnard and Khmer Krom minorities. The last remaining FULRO insurgents surrendered to the United Nations in 1992. Vietnam has settled over a million ethnic Vietnamese on Montagnard lands in the Central Highlands. The Montagnard staged a massive protest against the Vietnamese in 2001, which led to the Vietnamese to forcefully crush the uprising and seal the entire area off to foreigners.
The Vietnamese government fears that evidence of Champa's influence over the disputed area in the South China Sea would bring attention to human rights violations and killings of ethnic minorities in Vietnam such as in the 2001 and 2004 uprisings, and lead to the issue of Cham autonomy being brought into the dispute, since the Vietnamese conquered the Hindu and Muslim Cham people in a war in 1832, and the Vietnamese continue to destroy evidence of Cham culture and artefacts left behind, plundering or building on top of Cham temples, building farms over them, banning Cham religious practices, and omitting references to the destroyed Cham capital of Song Luy in the 1832 invasion in history books and tourist guides. The situation of Cham compared to ethnic Vietnamese is substandard, lacking water and electricity and living in houses made out of mud.
The Cham in Vietnam are only recognised as a minority, and not as an indigenous people by the Vietnamese government despite being indigenous to the region. Both Hindu and Muslim Chams have experienced religious and ethnic persecution and restrictions on their faith under the current Vietnamese government, with the Vietnamese state confisticating Cham property and forbidding Cham from observing their religious beliefs. Hindu temples were turned into tourist sites against the wishes of the Cham Hindus. In 2010 and 2013 several incidents occurred in Thành Tín and Phươc Nhơn villages where Cham were murdered by Vietnamese. In 2012, Vietnamese police in Chau Giang village stormed into a Cham Mosque, stole the electric generator, and also raped Cham girls. Cham Muslims in the Mekong Delta have also been economically marginalised and pushed into poverty by Vietnamese policies, with ethnic Vietnamese Kinh settling on majority Cham land with state support, and religious practices of minorities have been targeted for elimination by the Vietnamese government.
Transportation and communication
|Taiping Island||Republic of China (Taiwan)||Taiping Island|
|Swallow Reef||Malaysia||Layang-Layang Island|
|Thitu Island||Philippines||Pagasa Island|
|Spratly Island||Vietnam||Truong Sa Island|
On 18 May 2011, China Mobile announced that its mobile phone coverage has expanded to the Spratly Islands. The extended coverage would allow soldiers stationed on the islands, fishermen, and merchant vessels within the area to use mobile services, and can also provide assistance during storms and sea rescues. The service network deployment over the islands took nearly one year.
- List of islands in the South China Sea
- Johnson South Reef Skirmish
- South China Sea Islands
- Paracel Islands
- Kingdom of Humanity
- Junk Keying
- Zheng He
- SSN, a computer game set during a conflict over the Spratly Islands.
- Chinese reunification
- Greater Philippines
- With reclaimed land, Swallow Reef is probably the third largest "island" in the Spratlys.
- See List of maritime features in the Spratly Islands for information about individual islands.
- 民政部关于国务院批准设立地级三沙市的公告-中华人民共和国民政部, Ministry of Civil Affairs of the PRC - Totally useless reference for readers of English wikipedia; No indication of what it's about, or why it's being quoted.
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- ? The three major archipelagos are the Spratly Islands, the Paracel Islands, and ... ? Other significant groups include the Pratas Islands, the Macclesfield Bank, the Scarborough Shoal and others.
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- Note, however, that a 2013 US EIA report questions the economic viability of many of the potential reserves.
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- Qing dynasty provincial map from tianxia world map 《清直省分图》之《天下总舆图》
- Qing dynasty circuit and province map from Tianxia world map 《皇清各直省分图》之《天下总舆图》
- Great Qing of 10,000-years Tianxia map 《大清万年一统天下全图》
- Great Qing of 10,000-years general map of all territory 《大清万年一统地量全图》
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- RRayhanR (11 August 2012). "IMPACT OF POSSIBLE CHINA-PHILIPPINES WAR WITHIN FILIPINO-MORO WAR IN MINDANAO". mnlfnet.com. Moro National Liberation Front (Misuari faction). Retrieved 16 May 2014.
- Bray, Adam (16 June 2014). "The Cham: Descendants of Ancient Rulers of South China Sea Watch Maritime Dispute From Sidelines". National Geographic News (National Geographic). Archived from the original on 2014. Retrieved 3 September 2014.
- "Mission to Vietnam Advocacy Day (Vietnamese-American Meet up 2013) in the U.S. Capitol. A UPR report By IOC-Campa". Chamtoday.com. 14 September 2013. Retrieved 17 June 2014.
- Taylor, Philip (December 2006). "Economy in Motion: Cham Muslim Traders in the Mekong Delta". The Asia Pacific Journal of Anthropology (The Australian National University) 7 (3): 238. doi:10.1080/14442210600965174. ISSN 1444-2213. Retrieved 3 September 2014.
- Kalayaan Islands of Palawan Province (video part 1 of 2), 14 November 2009
- Ian Mansfield, 18 May 2011, China Mobile Expands Coverage to the Spratly Islands, Cellular News
- Bonnet, Francois-Xavier (2012) Geopolitics of Scarborough Shoal, Irasec, 14.
- Bouchat, Clarence J. (2013) Dangerous Ground: The Spratly Islands and U.S. Interests and Approaches, Strategic Studies Institute and US Army War College Press, Carlisle, PA.
- Cardenal, Juan Pablo; Araújo, Heriberto (2011). La silenciosa conquista china (in Spanish). Barcelona: Crítica. pp. 258–261.
- Dzurek, Daniel J. and Clive H.Schofield. (1996) The Spratly Islands dispute: who's on first?. IBRU. ISBN 978-1-897643-23-5
- Hogan, C. Michael (2011) South China Sea, Encyclopedia of Earth, National Council for Science and the Environment, Washington DC.
- Menon, Rajan (11 September 2012) Worry about Asia, Not Europe, The National Interest, Issue: Sept–Oct 2012.
|Wikimedia Commons has media related to Spratly Islands.|
- Wikimedia Atlas of the Spratly Islands
- Spratly Islands travel guide from Wikivoyage
- Mariner's page of the Spratly Islands
- Taiwanese List with ~170 entries
- List of atolls with areas
- Satellite images of all islands and reefs of the Spratly Islands. at the Wayback Machine (archived 23 December 2010)
- Flags of the World (FOTW)[dead link] entry with various micronations on the Spratly Islands.
- Map showing the claims
- A tabular summary about the Spratly and Paracel Islands
- Another overview table of the Spratly Islands[dead link]
- CIA World Factbook for Spratly Islands
- PDF (1.70 MB), from Vietnam Ministry of Foreign Affairs
- PDF (150 KB)
- Third Party Summary of the Dispute[dead link]
- Google Map of Spratly Islands
- Ji Guoxing (October 1995), Maritime Jurisdiction in the Three China Seas: Options For Equitable Settlement (PDF), Institute on Global Conflict and Cooperation.
- A collection of documents on Spratly and Paracel Islands by Nguyen Thai Hoc Foundation
- Depositional and erosional of the coast and beach, and change of morphology of Spratly coral island
- Results of premininary survey for the underground water in Spratly coral island
- Some geological features of Spratly Island
- Vietnamese sea and islands – position resources, and typical geological and ecological wonders
- Some researches on marine topography and sedimentation in Spratly Islands