Tunisia:
none
Turkey:
complex maritime, air, and territorial disputes with Greece
in Aegean Sea; Cyprus question with Greece; dispute with downstream
riparian states (Syria and Iraq) over water development plans for
the Tigris and Euphrates rivers; traditional demands regarding
former Armenian lands in Turkey have subsided
Turkmenistan:
Caspian Sea boundaries are not yet determined among
Azerbaijan, Iran, Kazakhstan, Russia, and Turkmenistan
Turks and Caicos Islands:
none
Tuvalu:
none
Uganda:
the Ugandan military is deployed to the Democratic Republic
of Congo in support of rebel forces in that country's civil war; a
resurvey of the latitudinal boundary with Tanzania in 2000 revealed
a 300-meter discrepancy that both sides are currently adjudicating
Ukraine:
has made no territorial claim in Antarctica (but has
reserved the right to do so) and does not recognize the claims of
any other nation
United Arab Emirates:
location and status of boundary with Saudi
Arabia is not final, de facto boundary reflects 1974 agreement;
boundary with Oman has not been bilaterally defined; northern
section in the Musandam Peninsula is an administrative boundary;
claims two islands in the Persian Gulf occupied by Iran: Lesser Tunb
(called Tunb as Sughra in Arabic by UAE and Jazireh-ye Tonb-e Kuchek
in Persian by Iran) and Greater Tunb (called Tunb al Kubra in Arabic
by UAE and Jazireh-ye Tonb-e Bozorg in Persian by Iran); claims
island in the Persian Gulf jointly administered with Iran (called
Abu Musa in Arabic by UAE and Jazireh-ye Abu Musa in Persian by
Iran) - over which Iran has taken steps to exert unilateral control
since 1992, including access restrictions and a military build-up on
the island; the UAE has garnered significant diplomatic support in
the region in protesting these Iranian actions
United Kingdom:
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 and the
Seychelles claim Chagos Archipelago (UK-administered British Indian
Ocean Territory); Rockall continental shelf dispute involving
Denmark and Iceland; territorial claim in Antarctica (British
Antarctic Territory) overlaps Argentine claim and partially overlaps
Chilean claim; disputes with Iceland, Denmark, and Ireland over the
Faroe Islands continental shelf boundary outside 200 NM
United States:
maritime boundary disputes with Canada (Dixon
Entrance, Beaufort Sea, Strait of Juan de Fuca, Machias Seal
Island); 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 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 nation; Marshall Islands
claims Wake Island