Disputes - international:
The Gambia and Guinea-Bissau attempt to stem separatist violence, cross border raids, and arms smuggling into their countries from Senegal's Casamance region, and in 2006, respectively accepted 6,000 and 10,000 Casamance residents fleeing the conflict; 2,500 Guinea-Bissau residents fled into Senegal in 2006 to escape armed confrontations along the border

Refugees and internally displaced persons:
refugees (country of origin): 19,630 (Mauritania)
IDPs: 22,400 (approximately 65% of the IDP population returned in 2005, but new displacement is occurring due to clashes between government troops and separatists in Casamance region) (2007)

Illicit drugs:
transshipment point for Southwest and Southeast Asian heroin and South American cocaine moving to Europe and North America; illicit cultivator of cannabis