Disputes - international:
Afghan, Coalition, and Pakistan military meet periodically to clarify the alignment of the boundary on the ground and on maps and since 2014 have met to discuss collaboration on the Taliban insurgency and counterterrorism efforts; Afghan and Iranian commissioners have discussed boundary monument densification and resurvey; Iran protests Afghanistan's restricting flow of dammed Helmand River tributaries during drought; Pakistan has sent troops across and built fences along some remote tribal areas of its treaty-defined Durand Line border with Afghanistan which serve as bases for foreign terrorists and other illegal activities; Russia remains concerned about the smuggling of poppy derivatives from Afghanistan through Central Asian countries

Refugees and internally displaced persons:
refugees (country of origin): 72,194 (Pakistan) (2018)
IDPs: 2.598 million (mostly Pashtuns and Kuchis displaced in the south and west due to natural disasters and political instability) (2018)

Illicit drugs:
world's largest producer of opium; poppy cultivation increased 63 percent, to 328,304 hectares in 2017; while eradication increased slightly, it still remains well below levels achieved in 2015; the 2017 crop yielded an estimated 9,000 mt of raw opium, a 88% increase over 2016; the Taliban and other antigovernment groups participate in and profit from the opiate trade, which is a key source of revenue for the Taliban inside Afghanistan; widespread corruption and instability impede counterdrug efforts; most of the heroin consumed in Europe and Eurasia is derived from Afghan opium; Afghanistan is also struggling to respond to a burgeoning domestic opiate addiction problem; a 2015 national drug use survey found that roughly 11% of the population tested positive for one or more illicit drugs; vulnerable to drug money laundering through informal financial networks; illicit cultivation of cannabis and regional source of hashish (2018)