83, tropical timber 94, wetlands Signed, but not ratified: Law of the Sea Territorial disputes History Thailand shares boundaries with Cambodia, Laos, Malaysia, and Myanmar. Although neither China nor Vietnam border Thailand, their territories lie within 100 km of Thai territory. Many parts of Thailand's boundaries follow natural features, such as the Mekong. Most borders were stabilized and demarcated in the late-19th and early-20th centuries in accordance with treaties forced on Thailand and its neighbors by Britain and France. In some areas, however, exact boundaries, especially along Thailand's eastern borders with Laos and Cambodia, are still disputed. Adding to general border tensions were the activities of communist-led insurgents, whose operations were of paramount concern to the Thai government and its security forces for several decades. The problem of communist insurgency was compounded by the activity of what the Thai government labelled "antistate elements". Often the real source of border problems was ordinary criminals or local merchants involved in illegal mining, logging, smuggling, and narcotics production and trade. Cambodia Cambodia's disputes with Thailand after 1951 arose in part from ill-defined boundaries and changes in France's colonial fortunes. Recently, the most notable case has been a dispute over Prasat Preah Vihear submitted to the International Court of Justice, which ruled in favor of Cambodia in 1962. During the years that the Cambodian capital, Phnom Penh, was controlled by the Khmer Rouge regime of Pol Pot (1975 to 1979), the border disputes continued. Laos Demarcation is complete except for certain Mekong islets. The border is marked by the Mekong: at high water during the rainy season, the centre line of the current is the border, while during low water periods, all islands, mudbanks, sandbanks, and rocks that are revealed belong to Laos. Malaysia In contrast to dealings with Cambodia, which attracted international attention, boundary disputes with Malaysia are usually handled more cooperatively. Continuing mineral exploration and fishing, however, are sources of potential conflict. A one kilometre segment at the mouth of the Kolok River remained in dispute with Malaysia as of 2004. Myanmar Sovereignty over three Andaman Sea islands remains disputed. The standing agreement, negotiated in February 1982, left undetermined the status of Ginga Island (Ko Lam), Ko Kham, and Ko Ki Nok at the mouth of the Kraburi River (Pakchan River). Subsequent negotiations in 1985, 1989, and 1990 made no progress. The two parties have designated the islands as "no man's land".