Disputes - international:
involved in complex dispute with China, Malaysia, Philippines, Vietnam, and possibly Brunei over the Spratly Islands; the 2002 "Declaration on the Conduct of Parties in the South China Sea" has eased tensions but falls short of a legally binding "code of conduct" desired by several of the disputants; Paracel Islands are occupied by China, but claimed by Taiwan and Vietnam; in 2003, China and Taiwan became more vocal in rejecting both Japan's claims to the uninhabited islands of the Senkaku-shoto (Diaoyu Tai) and Japan's unilaterally declared exclusive economic zone in the East China Sea where all parties engage in hydrocarbon prospecting

Illicit drugs:
regional transit point for heroin, methamphetamine, and precursor chemicals; transshipment point for drugs to Japan; major problem with domestic consumption of methamphetamine and heroin; rising problems with use of ketamine and club drugs