een
officially demarcated; territorial dispute with Kyrgyzstan on
northern boundary in Isfara Valley area

Tanzania:
dispute with Malawi over the boundary in Lake Nyasa (Lake
Malawi); a resurvey of the latitudinal boundary with Uganda in 2000
revealed a 300-meter discrepancy that both sides are currently
adjudicating

Thailand:
parts of the border with Laos are indefinite; parts of
border with Cambodia are indefinite; sporadic border hostilities
with Burma over border alignment and ethnic Shan rebels operating in
cross-border region

Togo:
none

Tokelau:
none

Tonga:
none

Trinidad and Tobago:
none

Tromelin Island:
claimed by Madagascar and Mauritius

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 restriction