Disputes—international: parts of the border with Laos are indefinite; maritime boundary with Vietnam resolved, August 1997; parts of border with Cambodia are indefinite; maritime boundary with Cambodia not clearly defined; sporadic conflict with Burma over alignment of border

Illicit drugs: a minor producer of opium, heroin, and marijuana; major 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 amphetamine production for regional consumption; increasing indigenous abuse of methamphetamines and heroin