Illegal drug trade in Turkey trade with Iraq due to the U.N. embargo and the Gulf War. The biggest drug cartel was led by Kurdish drug trafficker Hüseyin Baybaşin. The U.K. National Crime Squad estimated that 90% of the heroin in the United Kingdom (25–35 tonnes annually in the late 1990s) was under their control until 2002, when it had a bloody falling-out with its partners in the PKK. He settled in the U.K. after becoming an informer for the HM Customs and Excise office to reveal what he knew, as someone who traveled with a diplomatic passport, about the involvement in heroin trafficking of
Illegal drug trade emerged as a multinational effort as supplies (i.e. coca plant substances) were imported from countries such as Bolivia and Peru, were refined in Colombian cocaine labs and smuggled through Colombia, and exported to countries such as the US. Colombia has had a significant role in the illegal drug trade in Latin America. While active in the drug trade since the 1930s, Colombia's role in the drug trade did not truly become dominant until the 1970s. When Mexico eradicated marijuana plantations, demand stayed the same. Colombia met much of the demand by growing more marijuana. Grown in the strategic northeast region