Disputes - international:
Iran protests Afghanistan's limiting flow of dammed waters on
Helmand River tributaries in response to prolonged drought in
region; thousands of Afghan refugees still reside in Iran; despite
restored diplomatic relations in 1990, disputes with Iraq over
maritime and land boundaries, navigation channel, and other issues
from eight-year war persist; UAE engage direct talks and Arab League
support to resolve disputes over Iran's occupation of Tunb Islands
and Abu Musa Island; Iran insists on division of the Caspian Sea
into five equal sectors, while other littoral states have generally
agreed to equidistant seabed boundaries - Iran has threatened
Azerbaijanian hydrocarbon exploration in disputed waters
Illicit drugs:
despite substantial interdiction efforts, Iran remains a key
transshipment point for Southwest Asian heroin to Europe; domestic
narcotics consumption remains a persistent problem and Iranian press
reports estimate at least 2 million drug users in the country