AfghanistanTransnational Issues

Disputes - international:	the UN has been able to repatriate over two million Afghan refugees but several million more continue to reside in Iran and Pakistan in camps and elsewhere, many at their own choosing; Coalition and Pakistani forces continue to patrol remote tribal areas to control the borders and stem organized terrorist and other illegal cross-border activities; regular meetings between Pakistani and Coalition allies aim to resolve periodic claims of boundary encroachments; occasional conflicts over water-sharing arrangements with Amu Darya and Helmand River states
Refugees and internally displaced persons:	IDPs: 167,000 - 200,000 (mostly Pashtuns and Kuchis displaced in south and west due to drought and instability) (2004)
Illicit drugs:	world's largest producer of opium; cultivation of opium poppy reached unprecedented level of 206,700 hectares in 2004; counterdrug efforts largely unsuccessful; potential opium production of 4,950 metric tons; potential heroin production of 582 metric tons if all opium was processed; source of hashish; many narcotics-processing labs throughout the country; drug trade source of instability and some antigovernment groups profit from the trade; 80-90% of the heroin consumed in Europe comes from Afghan opium; vulnerable to narcotics money laundering through informal financial networks

More about Afghanistan:

The World Factbook 2005, by the Central Intelligence Agency (CIA)

Geography