| State
| Government
| Head of state
| Head of government
|
| Image:Afghanistan flag 300.png Afghanistan
| presidential republic
| President Hamid Karzai
|
| Image:Flag of Albania.svg Albania
| parliamentary republic
| President Alfred Moisiu
| Prime Minister Sali Berisha
|
| Image:Flag of Algeria.svg Algeria
| semi-presidential republic
| President Abdelaziz Bouteflika
| Prime Minister Ahmed Ouyahia
|
| Image:Flag of Andorra.svg Andorra
| parliamentary monarchy
| Co-Princes Joan Enric Vives Sicília (represented by Nemesi Marqués Oste)
and Jacques Chirac (represented by Philippe Massoni)
| Head of Government Albert Pintat
|
| Image:Flag of Angola.svg Angola
| semi-presidential republic
| President José Eduardo dos Santos
| Prime Minister Fernando da Piedade Dias dos Santos
|
| Image:Flag of Antigua and Barbuda.svg Antigua and Barbuda
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Sir James Carlisle
| Prime Minister Baldwin Spencer
|
| Image:Flag of Argentina.svg Argentina
| presidential republic
| President Néstor Kirchner
|
| Image:Flag of Armenia.svg Armenia
| presidential republic
| President Robert Kocharian
| Prime Minister Andranik Margaryan
|
| Image:Flag of Australia.svg Australia
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Michael Jeffery
| Prime Minister John Howard
|
| Image:Flag of Austria.svg Austria
| parliamentary republic
| President Heinz Fischer
| Chancellor Wolfgang Schüssel
|
| Image:Flag of Azerbaijan.svg Azerbaijan
| presidential republic
| President Ilham Aliyev
| Prime Minister Artur Rasizade
|
| Image:Flag of the Bahamas.svg Bahamas
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Dame Ivy Dumont
| Prime Minister Perry Christie
|
| Image:Flag of Bahrain.svg Bahrain
| semi-constitutional monarchy
| King Hamad ibn Isa Al Khalifa
| Prime Minister Sheikh Khalifa ibn Salman Al Khalifa
|
| Image:Flag of Bangladesh.svg Bangladesh
| parliamentary republic
| President Iajuddin Ahmed
| Prime Minister Khaleda Zia
|
| Image:Flag of Barbados.svg Barbados
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Sir Clifford Husbands
| Prime Minister Owen Arthur
|
| Image:Flag of Belarus.svg Belarus
| presidential republic
| President Aleksandr Lukashenko
| Prime Minister Sergey Sidorsky
|
| Image:Flag of Belgium.svg Belgium
| parliamentary monarchy
| King Albert II
| Prime Minister Guy Verhofstadt
|
| Image:Flag of Belize.svg Belize
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Sir Colville Young
| Prime Minister Said Musa
|
| Image:Flag of Benin.svg Benin
| presidential republic
| President Mathieu Kérékou
|
| Image:Bhutan flag large.png Bhutan
| absolute monarchy
| King Jigme Singye Wangchuck
| Prime Minister Lyonpo Sangay Ngedup
|
| Image:Flag of Bolivia.svg Bolivia
| presidential republic
| President Eduardo Rodríguez
|
| Image:Flag of Bosnia and Herzegovina.svg Bosnia and Herzegovina
| federation
| Tripartite presidency: Ivo Miro Jović (President of the Presidency), Sulejman Tihić, Borislav Paravac
| Prime Minister Adnan Terzić
|
| Image:Flag of Botswana.svg Botswana
| presidential republic
| President Festus Mogae
|
| Image:Flag of Brazil.svg Brazil
| presidential republic
| President Luiz Inácio Lula da Silva
|
| Image:Brunei flag large.png Brunei
| absolute monarchy
| Sultan and Prime Minister Sir Hassanal Bolkiah
|
| Image:Flag of Bulgaria.svg Bulgaria
| parliamentary republic
| President Georgi Purvanov
| Prime Minister Sergei Stanishev
|
| Image:Flag of Burkina Faso.svg Burkina Faso
| presidential republic
| President Blaise Compaoré
| Prime Minister Paramanga Ernest Yonli
|
| Image:Flag of Burundi.svg Burundi
| presidential republic
| President Pierre Nkurunziza
|
| Image:Cambodia flag large.png Cambodia
| parliamentary monarchy
| King Norodom Sihamoni
| Prime Minister Samdech Hun Sen
|
| Image:Flag of Cameroon.svg Cameroon
| presidential republic
| President Paul Biya
| Prime Minister Ephraïm Inoni
|
| Image:Flag of Canada.svg Canada
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor General Michaëlle Jean
| Prime Minister Paul Martin
|
| Image:Flag of Cape Verde.svg Cape Verde
| semi-presidential republic
| President Pedro Pires
| Prime Minister José Maria Neves
|
| Image:Central african republic flag large.png Central African Republic
| presidential republic
| President François Bozizé
| Prime Minister Élie Doté
|
| Image:Flag of Chad.svg Chad
| presidential republic
| President Idriss Déby
| Prime Minister Pascal Yoadimnadji
|
| Image:Flag of Chile.svg Chile
| presidential republic
| President Ricardo Lagos
|
| Image:Flag of Peoples Republic of China.svg People's Republic of China
| Communist Party-led state
| President Hu Jintao
| Premier of the State Council Wen Jiabao
|
| Image:Flag of Colombia.svg Colombia
| presidential republic
| President Álvaro Uribe
|
| Image:Flag of Comoros.svg Comoros
| presidential republic
| President Azali Assoumani
|
| Image:Flag of Congo-Brazzaville.svg Republic of the Congo
| presidential republic
| President Denis Sassou-Nguesso
| Prime Minister Isidore Mvouba
|
| Image:Flag of the Democratic Republic of Congo.svg Democratic Republic of the Congo
| presidential republic
| President Joseph Kabila
|
| Image:Flag of Costa Rica.svg Costa Rica
| presidential republic
| President Abel Pacheco
|
| Image:Cote d'ivoire flag large.png Côte d'Ivoire
| presidential republic
| President Laurent Gbagbo
| Prime Minister Seydou Diarra
|
| Image:Croatia flag large.png Croatia
| parliamentary republic
| President Stipe Mesić
| Prime Minister Ivo Sanader
|
| Image:Flag of Cuba.svg Cuba
| Communist Party-led state
| President of the Councils of State and of Ministers Fidel Castro
|
| Image:Cyprus flag large.png Cyprus
| presidential republic
| President Tassos Papadopoulos
|
| Image:Flag of Czech Republic.svg Czech Republic
| parliamentary republic
| President Václav Klaus
| Prime Minister Jiří Paroubek
|
| Image:Flag of Denmark.svg Denmark
| parliamentary monarchy
| Queen Margrethe II
| Prime Minister Anders Fogh Rasmussen
|
| Image:Djibouti flag large.png Djibouti
| presidential republic
| President Ismail Omar Guelleh
| Prime Minister Dileita Mohamed Dileita
|
| Image:Dominica flag large.png Dominica
| parliamentary republic
| President Nicholas Liverpool
| Prime Minister Roosevelt Skerrit
|
| Image:Dominican republic flag large.png Dominican Republic
| presidential republic
| President Leonel Fernández
|
| Image:Flag of East Timor.svg East Timor
| parliamentary republic
| President Xanana Gusmão
| Prime Minister Mari Alkatiri
|
| Image:Ecuador flag large.png Ecuador
| presidential republic
| President Alfredo Palacio
|
| Image:Egypt flag 300.png Egypt
| presidential republic
| President Hosni Mubarak
| Prime Minister Ahmed Nazif
|
| Image:El salvador flag large.png El Salvador
| presidential republic
| President Antonio Saca
|
| Image:Equatorial guinea flag large.png Equatorial Guinea
| presidential republic
| President Teodoro Obiang Nguema Mbasogo
| Prime Minister Miguel Abia Biteo Boricó
|
| Image:Eritrea flag large.png Eritrea
| presidential republic
| President Isaias Afewerki
|
| Image:Flag of Estonia.svg Estonia
| parliamentary republic
| President Arnold Rüütel
| Prime Minister Andrus Ansip
|
| Image:Flag of Ethiopia.svg Ethiopia
| parliamentary republic
| President Girma Wolde-Giorgis
| Prime Minister Meles Zenawi
|
| Image:Fiji flag large.png Fiji
| parliamentary republic
| President Ratu Josefa Iloilo
| Prime Minister Laisenia Qarase
|
| Image:Flag of Finland.svg Finland
| semi-presidential republic
| President Tarja Halonen
| Prime Minister Matti Vanhanen
|
| Image:Flag of France.svg France
| semi-presidential republic
| President Jacques Chirac
| Prime Minister Dominique de Villepin
|
| Image:Flag of Gabon.svg Gabon
| presidential republic
| President Omar Bongo
| Prime Minister Jean-François Ntoutoume Emane
|
| Image:Gambia flag large.png The Gambia
| presidential republic
| President Yahya Jammeh
|
| Image:Flag of Georgia.svg Georgia
| presidential republic
| President Mikhail Saakashvili
| Prime Minister Zurab Nogaideli
|
| Image:Flag of Germany.svg Germany
| parliamentary republic
| President Horst Köhler
| Chancellor Gerhard Schröder
|
| Image:Flag of Ghana.svg Ghana
| presidential republic
| President John Kufuor
|
| Image:Flag of Greece.svg Greece
| parliamentary republic
| President Karolos Papoulias
| Prime Minister Kostas Karamanlis
|
| Image:Flag of Grenada.svg Grenada
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Sir Daniel Williams
| Prime Minister Keith Mitchell
|
| Image:Guatemala flag large.png Guatemala
| presidential republic
| President Óscar Berger
|
| Image:Flag of Guinea.svg Guinea
| presidential republic
| President Lansana Conté
| Prime Minister Cellou Dalein Diallo
|
| Image:Flag of Guinea-Bissau.svg Guinea-Bissau
| presidential republic
| President João Bernardo Vieira
| Prime Minister Carlos Gomes Júnior
|
| Image:Flag of Guyana.svg Guyana
| presidential republic
| President Bharrat Jagdeo
| Prime Minister Sam Hinds
|
| Image:Haiti flag large.png Haiti
| presidential republic
| President Boniface Alexandre
| Prime Minister Gérard Latortue
|
| Image:Flag of Honduras.svg Honduras
| presidential republic
| President Ricardo Maduro
|
| Image:Flag of Hungary.svg Hungary
| parliamentary republic
| President László Sólyom
| Prime Minister Ferenc Gyurcsány
|
| Image:Flag of Iceland.svg Iceland
| parliamentary republic
| President Ólafur Ragnar Grímsson
| Prime Minister Halldór Ásgrímsson
|
| Image:Flag of India.svg India
| parliamentary republic
| President A.P.J. Abdul Kalam
| Prime Minister Manmohan Singh
|
| Image:Flag of Indonesia.svg Indonesia
| presidential republic
| President Susilo Bambang Yudhoyono
|
| Image:Iran flag large.png Iran
| clerical republic
| Supreme Leader Ayatollah Ali Khamenei; President Mahmoud Ahmadinejad
|
| Image:Iraq flag large.png Iraq
| parliamentary republic
| President Jalal Talabani
| Prime Minister Ibrahim al-Jaafari
|
| Image:Flag of Ireland.svg Republic of Ireland
| parliamentary republic
| President Mary McAleese
| Taoiseach (prime minister) Bertie Ahern
|
| Image:Flag of Israel.svg Israel
| parliamentary republic
| President Moshe Katsav
| Prime Minister Ariel Sharon
|
| Image:Flag of Italy.svg Italy
| parliamentary republic
| President Carlo Azeglio Ciampi
| Prime Minister Silvio Berlusconi
|
| Image:Flag of Jamaica.svg Jamaica
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Sir Howard Cooke
| Prime Minister P. J. Patterson
|
| Image:Flag of Japan.svg Japan
| parliamentary monarchy
| Emperor Akihito
| Prime Minister Junichiro Koizumi
|
| Image:Flag of Jordan.svg Jordan
| semi-constitutional monarchy
| King Abdullah II
| Prime Minister Adnan Badran
|
| Image:Flag of Kazakhstan.png Kazakhstan
| presidential republic
| President Nursultan Nazarbayev
| Prime Minister Daniyal Akhmetov
|
| Image:Flag of Kenya.svg Kenya
| presidential republic
| President Mwai Kibaki
|
| Image:Flag of Kiribati.svg Kiribati
| presidential republic
| President Anote Tong
|
| Image:Flag of North Korea.svg North Korea
| Communist Party-led state
| The late Kim Il Sung (Eternal President2);
Kim Jong Il (Chairman of the National Defence Commission; regarded as "highest administrative authority");
Kim Yong Nam (Head of State for Foreign Affairs as Chairman of the Presidium of the Supreme People's Assembly)
| Premier Pak Pong Ju
|
| Image:Flag of South Korea.svg South Korea
| presidential republic
| President Roh Moo Hyun
| Prime Minister Lee Hai Chan
|
| Image:Flag of Kuwait.svg Kuwait
| semi-constitutional monarchy
| Emir Jaber Al Ahmad Al Jaber Al Sabah
| Prime Minister Sheikh Sabah Al Ahmad Al Jaber Al Sabah
|
| Image:Flag of Kyrgyzstan.svg Kyrgyzstan
| presidential republic
| President Kurmanbek Bakiyev
| Prime Minister Feliks Kulov
|
| Image:Flag of Laos.svg Laos
| Communist Party-led state
| President Khamtai Siphandon
| Prime Minister Boungnang Vorachith
|
| Image:Flag of Latvia.svg Latvia
| parliamentary republic
| President Vaira Vīķe-Freiberga
| Prime Minister Aigars Kalvītis
|
| Image:Lebanon flag large.png Lebanon
| semi-presidential confessional republic
| President Emile Lahoud
| Prime Minister Fouad Siniora
|
| Image:Lesotho flag large.png Lesotho
| parliamentary monarchy
| King Letsie III
| Prime Minister Pakalitha Mosisili
|
| Image:Flag of Liberia.svg Liberia
| presidential republic
| Gyude Bryant (Chairman of the National Transitional Government)
|
| Image:Flag of Libya.svg Libya
| jamahiriya
| Muammar al-Qaddafi ("Leader of the Revolution", de facto head of state);
Zentani Muhammad az-Zentani (General Secretary of the General People's Congress; de jure head of state)
| Shukri Ghanem (General Secretary of the General People's Committee)
|
| Image:Liechtenstein flag large.png Liechtenstein
| semi-constitutional monarchy
| Sovereign Prince Hans-Adam II;
Prince-Regent Alois
| Head of Government Otmar Hasler
|
| Image:Flag of Lithuania.svg Lithuania
| parliamentary republic
| President Valdas Adamkus
| Prime Minister Algirdas Brazauskas
|
| Image:Flag of Luxembourg.svg Luxembourg
| parliamentary monarchy
| Grand Duke Henri
| Prime Minister Jean-Claude Juncker
|
| Image:Flag of Macedonia.svg Republic of Macedonia
| semi-presidential republic
| President Branko Crvenkovski
| Prime Minister Vlado Bučkovski
|
| Image:Flag of Madagascar.svg Madagascar
| presidential republic
| President Marc Ravalomanana
| Prime Minister Jacques Sylla
|
| Image:Flag of Malawi.svg Malawi
| presidential republic
| President Bingu wa Mutharika
|
| Image:Flag of Malaysia.svg Malaysia
| parliamentary monarchy
| Yang di-Pertuan Agong Syed Sirajuddin ibni al-Marhum Syed Putra Jamalullail (often referred to as "King" in the West)
| Prime Minister Dato' Seri Abdullah Ahmad Badawi
|
| Image:Maldives flag large.png Maldives
| presidential republic
| President Maumoon Abdul Gayoom
|
| Image:Flag of Mali.svg Mali
| presidential republic
| President Amadou Toumani Touré
| Prime Minister Ousmane Issoufi Maïga
|
| Image:Malta flag large.png Malta
| parliamentary republic
| President Edward Fenech Adami
| Prime Minister Lawrence Gonzi
|
| Image:Flag of the Marshall Islands.svg Marshall Islands
| presidential republic
| President Kessai Note
|
| Image:Flag of Mauritania.svg Mauritania
| military junta
| Col. Ely Ould Mohamed Vall (Chairman of the Military Council for Justice and Democracy)
| Prime Minister Sidi Mohamed Ould Boubacar
|
| Image:Flag of Mauritius.svg Mauritius
| parliamentary republic
| President Sir Anerood Jugnauth
| Prime Minister Navin Ramgoolam
|
| Image:Flag of Mexico.svg Mexico
| presidential republic
| President Vicente Fox
|
| Image:Flag of Micronesia.svg Federated States of Micronesia
| presidential republic
| President Joseph Urusemal
|
| Image:Flag of Moldova.png Moldova
| semi-presidential republic
| President Vladimir Voronin
| Prime Minister Vasile Tarlev
|
| Image:Flag of Monaco.svg Monaco
| constitutional monarchy
| Sovereign Prince Albert II
| Minister of State Jean-Paul Proust
|
| Image:Flag of Mongolia.svg Mongolia
| semi-presidential republic
| President Nambaryn Enkhbayar
| Prime Minister Tsakhiagiyn Elbegdorj
|
| Image:Flag of Morocco.svg Morocco
| semi-constitutional monarchy
| King Muhammad VI
| Prime Minister Driss Jettou
|
| Image:Mozambique flag large.png Mozambique
| presidential republic
| President Armando Guebuza
| Prime Minister Luisa Diogo
|
| Image:Myanmar flag large.png Myanmar (Burma)
| military junta without representative institutions
| Sr. Gen. Than Shwe (Chairman of the State Peace and Development Council)
| Prime Minister Soe Win
|
| Image:Flag of Namibia.svg Namibia
| presidential republic
| President Hifikepunye Pohamba
| Prime Minister Nahas Angula
|
| Image:Flag of Nauru.svg Nauru
| presidential-parliamentary republic
| President Ludwig Scotty
|
| Image:Flag of Nepal.svg Nepal
| absolute monarchy
| King Gyanendra
|
| Image:Flag of the Netherlands.svg Netherlands
| parliamentary monarchy
| Queen Beatrix
| Prime Minister Jan Peter Balkenende
|
| Image:Flag of New Zealand.svg New Zealand
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Dame Silvia Cartwright
| Prime Minister Helen Clark
|
| Image:Nicaragua flag large.png Nicaragua
| presidential republic
| President Enrique Bolaños
|
| Image:Niger flag large.png Niger
| presidential republic
| President Tandja Mamadou
| Prime Minister Hama Amadou
|
| Image:Nigeria flag large.png Nigeria
| presidential republic
| President Olusegun Obasanjo
|
| Image:Flag of Norway.svg Norway
| parliamentary monarchy
| King Harald V
| Prime Minister Jens Stoltenberg
|
| Image:Oman flag large.png Oman
| absolute monarchy
| Sultan and Prime Minister Qaboos ibn Sa’id Al ‘Bu Sa’id
|
| Image:Flag of Pakistan.svg Pakistan
| presidential republic
| President Pervez Musharraf
| Prime Minister Shaukat Aziz
|
| Image:Palau flag large.png Palau
| presidential republic
| President Tommy Remengesau
|
| Image:Flag of Palestine.png Palestine (disputed area)
|
| President or Chairman Mahmoud Abbas
| Prime Minister Ahmed Qureia
|
| Image:Panama flag large.png Panama
| presidential republic
| President Martín Torrijos
|
| Image:Papua new guinea flag large.png Papua New Guinea
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Sir Paulias Matane
| Prime Minister Sir Michael Somare
|
| Image:Paraguay flag large.png Paraguay
| presidential republic
| President Nicanor Duarte
|
| Image:Flag of Peru.svg Peru
| presidential republic
| President Alejandro Toledo
| Prime Minister Pedro Pablo Kuczynski
|
| Image:Flag of the Philippines.svg Philippines
| presidential republic
| President Gloria Macapagal-Arroyo
|
| Image:Flag of Poland.svg Poland
| parliamentary republic
| President Aleksander Kwaśniewski
| Prime Minister Kazimierz Marcinkiewicz
|
| Image:Portugal flag large.png Portugal
| parliamentary republic
| President Jorge Sampaio
| Prime Minister José Sócrates
|
| Image:Flag of Qatar.svg Qatar
| absolute monarchy
| Emir Hamad ibn Khalifa Al Thani
| Prime Minister Sheikh Abdullah ibn Khalifa Al Thani
|
| Image:Flag of Romania.svg Romania
| semi-presidential republic
| President Traian Băsescu
| Prime Minister Călin Popescu-Tăriceanu
|
| Image:Flag of Russia.svg Russia
| presidential republic
| President Vladimir Putin
| Prime Minister Mikhail Fradkov
|
| Image:Flag of Rwanda.svg Rwanda
| presidential republic
| President Paul Kagame
| Prime Minister Bernard Makuza
|
| Image:Flag of Saint Kitts and Nevis.svg Saint Kitts and Nevis
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Sir Cuthbert Sebastian
| Prime Minister Denzil Douglas
|
| Image:Flag of Saint Lucia.svg Saint Lucia
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Dame Pearlette Louisy
| Prime Minister Kenny Anthony
|
| Image:Flag of Saint Vincent and the Grenadines.svg Saint Vincent and the Grenadines
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Sir Frederick Ballantyne
| Prime Minister Ralph Gonsalves
|
| Image:Samoa flag large.png Samoa
| parliamentary monarchy
| O le Ao o le Malo Malietoa Tanumafili II
| Prime Minister Tuila'epa Sailele Malielegaoi
|
| Image:San marino flag large.png San Marino
| parliamentary republic
| Captains-Regent Antonello Bacciocchi and Claudio Muccioli
| Fabio Berardi (Secretary of State for Foreign and Political Affairs)
|
| Image:Sao tome and principe flag large.png São Tomé and Príncipe
| semi-presidential republic
| President Fradique de Menezes
| Prime Minister Maria do Carmo Silveira
|
| Image:Saudi arabia flag large.png Saudi Arabia
| absolute monarchy
| King and Prime Minister Abdullah
|
| Image:Senegal flag large.png Senegal
| presidential republic
| President Abdoulaye Wade
| Prime Minister Macky Sall
|
| Image:Flag of Serbia and Montenegro.png Serbia and Montenegro
| state union
| President Svetozar Marović
|
| Image:Seychelles flag large.png Seychelles
| presidential republic
| President James Michel
|
| Image:Sierra leone flag large.png Sierra Leone
| presidential republic
| President Ahmad Tejan Kabbah
|
| Image:Flag of Singapore.svg Singapore
| parliamentary republic
| President S.R. Nathan
| Prime Minister Lee Hsien Loong
|
| Image:Flag of Slovakia.svg Slovakia
| parliamentary republic
| President Ivan Gašparovič
| Prime Minister Mikuláš Dzurinda
|
| Image:Flag of Slovenia.svg Slovenia
| parliamentary republic
| President Janez Drnovšek
| Prime Minister Janez Janša
|
| Image:Flag of the Solomon Islands.svg Solomon Islands
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Sir Nathaniel Waena
| Prime Minister Sir Allan Kemakeza
|
| Image:Flag of Somalia.svg Somalia
| de facto semi-presidential state
| President Abdullahi Yusuf Ahmed
| Prime Minister Ali Muhammad Ghedi
|
| Image:Flag of South Africa.svg South Africa
| presidential republic
| President Thabo Mbeki
|
| Image:Flag of Spain.svg Spain
| parliamentary monarchy
| King Juan Carlos I
| President of the Government José Luis Rodríguez Zapatero
|
| Image:Sri lanka flag large.png Sri Lanka
| semi-presidential republic
| President Chandrika Kumaratunga
|
| Image:Sudan flag large.png Sudan
| presidential republic
| President Omar Hassan Ahmad al-Bashir
|
| Image:Suriname flag large.png Suriname
| presidential republic
| President Ronald Venetiaan
|
| Image:Swaziland flag large.png Swaziland
| absolute monarchy
| King Mswati III
| Prime Minister Themba Dlamini
|
| Image:Flag of Sweden.svg Sweden
| parliamentary monarchy
| King Carl XVI Gustaf
| Prime Minister Göran Persson
|
| Image:Flag of Switzerland.svg Switzerland
| parliamentary and collegial republic
| Swiss Federal Council: Moritz Leuenberger, Pascal Couchepin, Joseph Deiss, Samuel Schmid (President)3, Micheline Calmy-Rey, Christoph Blocher, Hans-Rudolf Merz
|
| Image:Flag of Syria.svg Syria
| presidential republic
| President Bashar al-Assad
| Prime Minister Muhammad Naji al-Otari
|
| Image:Flag of Taiwan.svg Republic of China
| semi-presidential republic
| President Chen Shui-bian
| President of the Executive Yuan Frank Hsieh
|
| Image:Tajikistan flag large.png Tajikistan
| presidential republic
| President Emomali Rahmonov
| Prime Minister Okil Okilov
|
| Image:Flag of Tanzania.svg Tanzania
| presidential republic
| President Benjamin Mkapa
|
| Image:Flag of Thailand.svg Thailand
| parliamentary monarchy
| King Bhumibol Adulyadej
| Prime Minister Thaksin Shinawatra
|
| Image:Togo flag large.png Togo
| presidential republic
| President Faure Gnassingbé
| Prime Minister Edem Kodjo
|
| Image:Tonga flag large.png Tonga
| absolute monarchy
| King Taufa'ahau Tupou IV
| Prime Minister Prince 'Ulukalala Lavaka Ata
|
| Image:Flag of Trinidad and Tobago.svg Trinidad and Tobago
| parliamentary republic
| President Max Richards
| Prime Minister Patrick Manning
|
| Image:Tunisia flag large.png Tunisia
| presidential republic
| President Zine El Abidine Ben Ali
| Prime Minister Mohamed Ghannouchi
|
| Image:Flag of Turkey.svg Turkey
| semi-presidential republic
| President Ahmet Necdet Sezer
| Prime Minister Recep Tayyip Erdoğan
|
| Image:Turkmenistan flag large.png Turkmenistan
| presidential republic
| President Saparmurat Niyazov
|
| Image:TV-flag-lg.png Tuvalu
| parliamentary monarchy1
| Queen Elizabeth II, represented by Governor-General Filoimea Telito
| Prime Minister Maatia Toafa
|
| Image:Uganda flag large.png Uganda
| presidential republic
| President Yoweri Museveni
| Prime Minister Apolo Nsibambi
|
| Image:Ukraine flag large.png Ukraine
| semi-presidential republic
| President Viktor Yushchenko
| Prime Minister Yurii Yekhanurov
|
| Image:Uae flag large.png United Arab Emirates
| absolute monarchy
| President Sheikh Khalifa ibn Zayed Al Nahayan (the Emir of Abu Dhabi)
| Prime Minister Sheikh Maktum ibn Rashid Al Maktum (the Emir of Dubai)
|
| Image:Flag of the United Kingdom.svg United Kingdom
| parliamentary monarchy1
| Queen Elizabeth II
| Prime Minister Tony Blair
|
| Image:Flag of the United States.svg United States
| presidential republic
| President George W. Bush
|
| Image:Uruguay flag large.png Uruguay
| presidential republic
| President Tabaré Vázquez
|
| Image:Flag of Uzbekistan.svg Uzbekistan
| presidential republic
| President Islam Karimov
| Prime Minister Shavkat Mirziyayev
|
| Image:Vanuatu flag large.png Vanuatu
| parliamentary republic
| President Kalkot Mataskelekele
| Prime Minister Ham Lini
|
| Image:Flag of Vatican City.png Vatican City
| sacerdotal state
| Pope Benedict XVI
| Secretary of State Angelo Cardinal Sodano;
Governor Edmund Cardinal Szoka
|
| Image:Flag of Venezuela.svg Venezuela
| presidential republic
| President Hugo Chávez
|
| Image:Flag of Vietnam.svg Vietnam
| Communist Party-led state
| President Tran Duc Luong
| Prime Minister Phan Van Khai
|
| Image:Flag of Western Sahara.png Western Sahara
|
| President Mohamed Abdelaziz
| Prime Minister Abdelkader Taleb Oumar
|
| Image:Yemen flag large.png Yemen
| presidential republic
| President Ali Abdullah Saleh
| Prime Minister Abdul Qader Bajamal
|
| Image:Zambia flag large.png Zambia
| presidential republic
| President Levy Mwanawasa
|
| Image:Zimbabwe flag large.png Zimbabwe
| presidential republic
| President Robert Mugabe
|
