Disputes - international: complex maritime, air, and territorial disputes with Greece in Aegean Sea; Cyprus question with Greece; dispute with downstream riparian states (Syria and Iraq) over water development plans for the Tigris and Euphrates rivers; traditional demands regarding former Armenian lands in Turkey have subsided

Illicit drugs: key transit route for Southwest Asian heroin to Western Europe and - to a far lesser extent the US - via air, land, and sea routes; major Turkish, Iranian, and other international trafficking organizations operate out of Istanbul; laboratories to convert imported morphine base into heroin are in remote regions of Turkey as well as near Istanbul; government maintains strict controls over areas of legal opium poppy cultivation and output of poppy straw concentrate