Trinidad and Tobago
parliamentary democracy
Tunisia
republic
Turkey
republican parliamentary democracy
Turkmenistan
defines itself as a secular democracy and a
presidential republic; in actuality displays authoritarian
presidential rule, with power concentrated within the presidential
administration
Turks and Caicos Islands
NA
Tuvalu
parliamentary democracy and a Commonwealth realm
Uganda
republic
Ukraine
republic
United Arab Emirates
federation with specified powers delegated to
the UAE federal government and other powers reserved to member
emirates
United Kingdom
constitutional monarchy and Commonwealth realm