Disputes - international:

joint border commission continues to work on contested sections of boundary with India, including the 400 square kilometer dispute over the source of the Kalapani River; India has instituted a stricter border regime to restrict transit of Maoist insurgents and illegal cross-border activities; approximately 106,000 Bhutanese Lhotshampas (Hindus) have been confined in refugee camps in southeastern Nepal since 1990

Refugees and internally displaced persons:

refugees (country of origin): 107,803 (Bhutan); 20,153 (Tibet/China)
IDPs: 50,000-70,000 (remaining from ten-year Maoist insurgency that officially ended in 2006; displacement spread across the country) (2007)

Illicit drugs:

illicit producer of cannabis and hashish for the domestic and international drug markets; transit point for opiates from Southeast Asia to the West