Uganda
Uganda is subject to armed fighting among hostile ethnic
groups, rebels, armed gangs, militias, and various government
forces; Ugandan refugees have fled the Lord's Resistance Army (LRA)
into the southern Sudan and the Democratic Republic of the Congo;
LRA forces have also attacked Kenyan villages across the border
Ukraine
1997 boundary 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 but the parties have agreed to defer demarcation; maritime
boundary through the Sea of Azov and Kerch Strait remains unresolved
despite a December 2003 framework agreement and on-going
expert-level discussions; Moldova and Ukraine have established joint
customs posts to monitor transit through Moldova's break-away
Transnistria Region which remains under OSCE supervision; Ukraine
and Romania have taken their dispute over Ukrainian-administered
Zmiyinyy (Snake) Island and Black Sea maritime boundary to the ICJ
for adjudication; Romania opposes Ukraine's reopening of a
navigation canal from the Danube border through the Ukraine to the
Black Sea
United Arab Emirates
because the treaties have not been made public,
the exact alignment of the boundary with Saudi Arabia is still
unknown; 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 maps showing the
alignment have not been published; UAE engage in direct talks and
solicit Arab League support to resolve disputes over Iran's
occupation of Lesser and Greater Tunb Islands and Abu Musa Island
United Kingdom
in 2003, Gibraltar residents voted overwhelmingly by
referendum to remain a British colony and against a "total shared
sovereignty" arrangement while demanding participation in talks
between the UK and Spain; 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 Chagosians reside in
Mauritius, and in 2001 were granted UK citizenship but no right to
patriation in the UK; 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
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
Uruguay
uncontested dispute with Brazil over certain islands in the
Quarai/Cuareim and Invernada streams and the resulting tripoint with
Argentina
Uzbekistan
cotton monoculture in Uzbekistan and Turkmenistan creates
water-sharing difficulties for Amu Darya river states; delimitation
with Kazakhstan complete with demarcation underway; delimitation is
underway with Kyrgyzstan but serious disputes around enclaves and
elsewhere continue to mar progress for some 130 km of border; talks
continue with Tajikistan to delimit border and remove minefields
Vanuatu
Matthew and Hunter Islands east of New Caledonia claimed by
Vanuatu and France
Venezuela
claims all of the area west of the Essequibo River in
Guyana, preventing any discussion of a maritime boundary; Guyana has
expressed its intention to join Barbados in asserting claims before
UNCLOS that the Trinidad and Tobago's maritime boundary with
Venezuela extends into their waters; dispute with Colombia over Los
Monjes islands and maritime boundary near the Gulf of Venezuela;
Colombian-organized illegal narcotics and paramilitary activities
penetrate Venezuela's shared border region resulting in several
thousand residents migrating away from the border; US, France and
the Netherlands recognize Venezuela's claim to give full effect to
Aves Island, which creates a Venezuelan EEZ/continental shelf
extending over a large portion of the Caribbean Sea; Dominica, Saint
Kitts and Nevis, Saint Lucia, and Saint Vincent and the Grenadines
protest Venezuela's claim that Aves Island sustains human habitation
and other states' recognition of it
Vietnam
southeast Asian states have enhanced border surveillance to
check the spread of avian flu; Cambodia and Laos protest Vietnamese
squatters and armed encroachments along border; in 2004
Laotian-Vietnamese boundary commission agrees to erect missing
markers in two adjoining provinces; demarcation of the China-Vietnam
boundary proceeds slowly and although the maritime boundary
delimitation and fisheries agreements were ratified in June 2004,
implementation has been delayed; China occupies Paracel Islands also
claimed by Vietnam and Taiwan; involved in complex dispute with
China, Malaysia, Philippines, Taiwan, and possibly Brunei over the
Spratly Islands; the 2002 "Declaration on the Conduct of Parties in
the South China Sea" has eased tensions but falls short of a legally
binding "code of conduct" desired by several of the disputants;
Vietnam continues to expand construction of facilities in the
Spratly Islands; in March 2005, the national oil companies of China,
the Philippines, and Vietnam signed a joint accord to conduct marine
seismic activities in the Spratly Islands