Turks and Caicos Islands have received Haitians fleeing economic and civil disorder
Tuvalu
none
Uganda
Uganda is subject to armed fighting among hostile ethnic
groups, rebels, armed gangs, militias, and various government forces
that extend across its borders; Uganda hosts 209,860 Sudanese,
27,560 Congolese, and 19,710 Rwandan refugees, while Ugandan
refugees as well as members of the Lord's Resistance Army (LRA) seek
shelter in southern Sudan and the Democratic Republic of the Congo's
Garamba National Park; LRA forces have also attacked Kenyan villages
across the border
Ukraine
1997 boundary delimitation treaty with Belarus remains
un-ratified due to unresolved financial claims, stalling demarcation
and reducing border security; delimitation of land boundary with
Russia is complete with preparations for demarcation underway; the
dispute over the boundary between Russia and Ukraine through the
Kerch Strait and Sea of Azov remains unresolved despite a December
2003 framework agreement and ongoing expert-level discussions;
Moldova and Ukraine operate joint customs posts to monitor transit
of people and commodities through Moldova's break-away Transnistria
Region, which remains under OSCE supervision; the ICJ gave Ukraine
until December 2006 to reply and Romania until June 2007 to rejoin
in their dispute submitted in 2004 over Ukrainian-administered
Zmiyinyy/Serpilor (Snake) Island and Black Sea maritime boundary;
Romania opposes Ukraine's reopening of a navigation canal from the
Danube border through Ukraine to the Black Sea
United Arab Emirates
boundary agreement was signed and ratified with
Oman in 2003 for entire border, including Oman's Musandam Peninsula
and Al Madhah enclaves, but contents of the agreement and detailed
maps showing the alignment have not been published; Iran and UAE
dispute Tunb Islands and Abu Musa Island, which Iran occupies
United Kingdom
in 2002, Gibraltar residents voted overwhelmingly by
referendum to reject any "shared sovereignty" arrangement between
the UK and Spain; the Government of Gibraltar insists on equal
participation in talks between the two countries; Spain disapproves
of UK plans to grant Gibraltar greater autonomy; Mauritius and
Seychelles claim the Chagos Archipelago (British Indian Ocean
Territory), and its former inhabitants since their eviction in 1965;
most Chagossians reside in Mauritius, and in 2001 were granted UK
citizenship, where some have since resettled; in May 2006, the High
Court of London reversed the UK Government's 2004 orders of council
that banned habitation on the islands; UK rejects sovereignty talks
requested by Argentina, which still claims the Falkland Islands
(Islas Malvinas) and South Georgia and the South Sandwich Islands;
territorial claim in Antarctica (British Antarctic Territory)
overlaps Argentine claim and partially overlaps Chilean claim;
Iceland, the UK, and Ireland dispute Denmark's claim that the Faroe
Islands' continental shelf extends beyond 200 nm
United States
the U.S. has intensified domestic security measures
and is collaborating closely with its neighbors, Canada and Mexico,
to monitor and control legal and illegal personnel, transport, and
commodities across the international borders; abundant rainfall in
recent years along much of the Mexico-US border region has
ameliorated periodically strained water-sharing arrangements; 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; 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 states; Marshall Islands claims
Wake Island; Tokelau included American Samoa's Swains Island among
the islands listed in its 2006 draft constitution
United States Pacific Island Wildlife Refuges
none
Uruguay
in Jan 2007, ICJ provisionally ruled Uruguay may begin
construction of two paper mills on the Uruguay River, which forms
the border with Argentina, while the court examines further whether
Argentina has the legal right to stop such construction with
potential environmental implications to both countries; uncontested
dispute with Brazil over certain islands in the Quarai/Cuareim and
Invernada streams and the resulting tripoint with Argentina
Uzbekistan
prolonged drought and cotton monoculture in Uzbekistan
and Turkmenistan creates water-sharing difficulties for Amu Darya
river states; field demarcation of the boundaries with Kazakhstan
commenced in 2004; border delimitation of 130 km of border with
Kyrgyzstan is hampered by serious disputes around enclaves and other
areas