Disputes - international:
prolonged drought, population growth, and outmoded practices and infrastructure in the border region strain water-sharing arrangements with Mexico; the US has stepped up efforts to stem nationals from Mexico, Central America, and other parts of the world from crossing illegally into the US from Mexico; illegal immigrants from the Caribbean, notably Haiti and the Dominican Republic, attempt to enter the US through Florida by sea; 1990 Maritime Boundary Agreement in the Bering Sea still awaits Russian Duma ratification; managed maritime boundary disputes with Canada at Dixon Entrance, Beaufort Sea, Strait of Juan de Fuca, and around the disputed Machias Seal Island and North Rock; US and Canada seek greater cooperation in monitoring people and commodities crossing the border; The Bahamas and US have not been able to agree on a maritime boundary; US Naval Base at Guantanamo Bay is leased from Cuba and only mutual agreement or US abandonment of the area can terminate the lease; Haiti claims US-administered Navassa Island; US has made no territorial claim in Antarctica (but has reserved the right to do so) and does not recognize the claims of any other state; Marshall Islands claims Wake Island

Refugees and internally displaced persons:
refugees (country of origin): the US admitted 52,868 refugees during FY03/04 including: 13,331 (Somalia), 6,000 (Laos), 3,482 (Ukraine), 2,959 (Cuba), 1,787 (Iran); note - 32,229 refugees had been admitted as of 30 June 2005