Disputes - international:
prolonged drought, population growth, and outmoded practices and infrastructure in the border region strains 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 United States 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
Illicit drugs:
consumer of cocaine shipped from Colombia through Mexico and the Caribbean; consumer of heroin, marijuana, and increasingly methamphetamine from Mexico; consumer of high-quality Southeast Asian heroin; illicit producer of cannabis, marijuana, depressants, stimulants, hallucinogens, and methamphetamine; money-laundering center
