Disputes - international:
separatist violence in Thailand's predominantly Muslim southern provinces prompt border closures and controls with Malaysia to stem terrorist activities; southeast Asian states have enhanced border surveillance to check the spread of avian flu; talks continue on completion of demarcation with Thailand but disputes remain over several areas along Mekong River and Thai squatters; despite continuing border committee talks, significant differences remain with Burma over boundary alignment and the handling of ethnic rebels, refugees, and illegal cross-border activities; Cambodia and Thailand dispute sections of boundary with missing boundary markers; Cambodia claims Thai encroachments into Cambodian territory and obstructing access to Preah Vihear temple ruins awarded to Cambodia by ICJ decision in 1962; ethnic Karens from Burma flee into Thailand - to escape fighting between Karen rebels and Burmese troops - resulting in Thailand sheltering about 120,000 Burmese refugees in 2005; Karens also protest Thai support for a Burmese hydroelectric dam construction on the Salween River near the border; environmentalists in Burma and Thailand remain concerned about China's construction of hydroelectric dams upstream on the Nujiang/Salween River in Yunnan Province
Refugees and internally displaced persons:
refugees (country of origin): 120,814 (Burma)
IDPs: 6,000 (26 December 2004 tsunami) (2005)
Illicit drugs:
a minor producer of opium, heroin, and marijuana; illicit transit point for heroin en route to the international drug market from Burma and Laos; eradication efforts have reduced the area of cannabis cultivation and shifted some production to neighboring countries; opium poppy cultivation has been reduced by eradication efforts; also a drug money-laundering center; minor role in methamphetamine production for regional consumption; major consumer of methamphetamine since the 1990s
