Disputes - international: Northern Ireland issue with Ireland (historic peace agreement signed 10 April 1998); Gibraltar issue with Spain; Argentina claims Falkland Islands (Islas Malvinas); Argentina claims South Georgia and the South Sandwich Islands; Mauritius claims island of Diego Garcia in British Indian Ocean Territory; Rockall continental shelf dispute involving Denmark, Iceland, and Ireland (Ireland and the UK have signed a boundary agreement in the Rockall area); territorial claim in Antarctica (British Antarctic Territory); Seychelles claims Chagos Archipelago in British Indian Ocean Territory

Illicit drugs: gateway country for Latin American cocaine entering the European market; producer and major consumer of synthetic drugs, synthetic precursor chemicals; major consumer of Southwest Asian heroin; money-laundering center