User:ColorfulSmoke/List of sovereign states in the 1920s

<!--

A

 *  Afghanistan - Emirate of Afghanistan
 * 🇦🇱 Albania - Principality of Albania
 * 🇦🇩 Andorra - Principality of Andorra
 * 🇦🇷 Argentina - Argentine Republic
 * 🇦🇲 Armenia
 * Democratic Republic of Armenia (to November 29)
 * Armenian Socialist Soviet Republic (from November 29)
 *  Asir - Emirate of Asir
 *  Asir, Upper - Emirate of Upper Asir (to August)
 * 🇦🇺 Australia - Commonwealth of Australia
 * 🇦🇹 Austria - Federal State of Austria
 * 🇦🇿 Azerbaijan
 * Azerbaijan Democratic Republic (to April 28)
 * Azerbaijan Socialist Soviet Republic (from April 28)

B

 * 🇧🇪 Belgium - Kingdom of Belgium
 * 🇧🇴 Bolivia - Republic of Bolivia
 * 🇧🇷 Brazil - Republic of the United States of Brazil
 * 🇧🇬 Bulgaria - Kingdom of Bulgaria

C

 * 🇨🇦 Canada - Dominion of Canada
 * 🇨🇱 Chile - Republic of Chile
 *  Republic of China - Republic of China
 * 🇨🇴 Colombia - Republic of Colombia
 * 🇨🇷 Costa Rica - Republic of Costa Rica
 * 🇨🇺 Cuba - Republic of Cuba
 *  Czechoslovakia
 * Czecho-Slovak Republic (to 1920)
 * Czechoslovak Republic (from 1920)

D

 *  Danzig - Free City of Danzig (from January 10)
 * 🇩🇰 Denmark - Kingdom of Denmark
 * 🇩🇴 Dominican Republic

E

 * 🇪🇨 Ecuador - Republic of Ecuador
 * 🇸🇻 El Salvador - Republic of El Salvador
 * 🇪🇪 Estonia - Republic of Estonia
 * 🇪🇹 Ethiopia - Ethiopian Empire

F

 * 🇫🇮 Finland - Republic of Finland
 *  Fiume - Free State of Fiume (from November 12)
 * 🇫🇷 France - French Republic

G

 *  Georgia - Democratic Republic of Georgia
 *  Weimar Republic - German Reich
 * 🇬🇷 Greece - Kingdom of Greece
 * 🇬🇹 Guatemala - Republic of Guatemala

H

 *  Ha'il - Emirate of Ha'il
 * 🇭🇹 Haiti - Republic of Haiti
 *  Kingdom of Hejaz - Kingdom of Hejaz
 *  Honduras - Republic of Honduras
 * 🇭🇺 Hungary - Kingdom of Hungary (from March 1)

I

 *  Iceland - Kingdom of Iceland
 * 🇮🇹 Italy - Kingdom of Italy

J

 *  Empire of Japan - Empire of Japan

L

 * Latvia (Disputed between two governments to January 13)
 * 🇱🇻 Republic of Latvia
 * Latvian Socialist Soviet Republic (to January 13)
 * 🇱🇷 Liberia - Republic of Liberia
 *  Liechtenstein - Principality of Liechtenstein
 * 🇱🇹 Lithuania - Republic of Lithuania
 * 🇱🇺 Luxembourg - Grand Duchy of Luxembourg

M

 * 🇲🇽 Mexico - United Mexican States
 * 🇲🇨 Monaco - Principality of Monaco

N

 *  Nejd - Emirate of Nejd
 * 🇳🇱 Netherlands - Kingdom of the Netherlands
 *  Newfoundland - Dominion of Newfoundland
 * 🇳🇿 New Zealand - Dominion of New Zealand
 * 🇳🇮 Nicaragua - Republic of Nicaragua
 * 🇳🇴 Norway - Kingdom of Norway

O

 *  Ottoman Empire - Sublime Ottoman State

P

 * 🇵🇦 Panama - Republic of Panama
 *  Paraguay - Republic of Paraguay
 *  Persia - Persian Empire
 * 🇵🇪 Peru - Peruvian Republic
 * 🇵🇱 Poland - Republic of Poland
 * 🇵🇹 Portugal - Portuguese Republic

R

 * 🇷🇴 Romania - Kingdom of Romania
 *  Russian SFSR - Russian Socialist Federative Soviet Republic

S

 * 🇸🇲 San Marino - Most Serene Republic of San Marino
 *  Kingdom of Yugoslavia - Kingdom of Serbs, Croats, and Slovenes
 * 🇹🇭 Thailand - Kingdom of Siam
 * 🇿🇦 South Africa - Union of South Africa
 * 🇪🇸 Spain - Kingdom of Spain
 * 🇸🇪 Sweden - Kingdom of Sweden
 * 🇨🇭 Switzerland - Swiss Confederation

U

 * 🇬🇧 United Kingdom - United Kingdom of Great Britain and Ireland
 * 🇺🇸 United States - United States of America
 * 🇺🇾 Uruguay - Eastern Republic of Uruguay

V

 * 🇻🇪 Venezuela - United States of Venezuela

Y

 *  Yemen - Mutawakkilite Kingdom of Yemen

Other states

 *  Alash - Alash Autonomy (to August 26)
 *  - Free State Bottleneck
 *  Bukharan - Bukharan People's Soviet Republic (from October 8)
 *  Byelorussia - Byelorussian Socialist Soviet Republic (from August 1)
 *  Carnaro - Italian Regency of Carnaro (from September 8 to December 30)
 *  Central Lithuania - Republic of Central Lithuania (from October 12)
 *  Don - Don Republic (to 1920)
 *  Far Eastern Republic (from April 6)
 *  Galicia - Galician Socialist Soviet Republic (from July 8 to September 21)
 *  Gilan - Persian Socialist Soviet Republic (from June)
 * 🇮🇪 Ireland - Irish Republic
 *  Khiva (to April 30), Khorezm (from April 30)
 * Khanate of Khiva (to April 30)
 * Khorezm People's Soviet Republic (from April 30)
 *  Kuban - Kuban People's Republic
 *  Lemko-Rusyn - Lemko-Rusyn Republic (to March)
 *  Mongolia - Boghda Khaanate of Mongolia
 *  North Caucasian Emirate
 *  Northern Caucasus - Mountainous Republic of the Northern Caucasus (to June)
 *  North Ingria - Republic of North Ingria (to December 20)
 *  - Provisional Government of Autonomous Siberia (to February 7)
 *  Tavolara - Kingdom of Tavolara
 *  Tibet
 *  Ukraine, Soviet - Ukrainian Socialist Soviet Republic

League of Nations Mandates

 * 🇬🇧 Mesopotamia - British Mandate of Mesopotamia (administered by the United Kingdom from April 10)
 * 🇦🇺 Nauru (administered by Australia, New Zealand and the United Kingdom from December 17)
 * 🇦🇺 New Guinea - Territory of New Guinea (administered by Australia from December 17)
 *  South Pacific Mandate (administered by Japan from 1920)
 * 🇳🇿 Western Samoa (administered by New Zealand from December 17)

A

 *  Abkhazia - Socialist Soviet Republic of Abkhazia (from March 31)
 *  🇦🇫 Afghanistan - Emirate of Afghanistan
 *  Albania - Principality of Albania
 * 🇦🇩 Andorra - Principality of Andorra
 * 🇦🇷 Argentina - Argentine Republic
 *  Armenia - Armenian Socialist Soviet Republic
 *  Asir - Emirate of Asir
 * 🇦🇺 Australia - Commonwealth of Australia
 * 🇦🇹 Austria - Federal State of Austria
 *  Azerbaijan - Azerbaijan Socialist Soviet Republic

B

 * 🇧🇪 Belgium - Kingdom of Belgium
 * 🇧🇴 Bolivia - Republic of Bolivia
 * 🇧🇷 Brazil - Republic of the United States of Brazil
 * 🇧🇬 Bulgaria - Kingdom of Bulgaria

C

 * 🇨🇦 🇨🇦 Canada - Dominion of Canada
 *  Central America - Federation of Central America (from October 1)
 * 🇨🇱 Chile - Republic of Chile
 *  Republic of China - Republic of China
 * 🇨🇴 Colombia - Republic of Colombia
 * 🇨🇷 Costa Rica - Republic of Costa Rica
 * 🇨🇺 Cuba - Republic of Cuba
 *  Czechoslovakia - Czechoslovak Republic

D

 *  Danzig - Free City of Danzig
 * 🇩🇰 Denmark - Kingdom of Denmark
 * 🇩🇴 Dominican Republic

E

 * 🇪🇨 Ecuador - Republic of Ecuador
 * 🇸🇻 El Salvador - Republic of El Salvador (to October 1)
 * 🇪🇪 Estonia - Republic of Estonia
 * 🇪🇹 Ethiopia - Ethiopian Empire

F

 * 🇫🇮 Finland - Republic of Finland
 *  Fiume - Free State of Fiume
 * 🇫🇷 France - French Republic

G

 *  Georgia - Democratic Republic of Georgia (to February 11)
 *  Weimar Republic - German Reich
 * 🇬🇷 Greece - Kingdom of Greece
 * 🇬🇹 Guatemala - Republic of Guatemala (to October 1)

H

 *  Ha'il - Emirate of Ha'il (to November 2)
 * 🇭🇹 Haiti - Republic of Haiti
 *  Kingdom of Hejaz - Kingdom of Hejaz
 *  Honduras - Republic of Honduras (to October 1)
 * 🇭🇺 Hungary - Kingdom of Hungary

I

 *  Iceland - Kingdom of Iceland
 * 🇮🇹 Italy - Kingdom of Italy

J

 *  Empire of Japan - Empire of Japan

L

 * 🇱🇻 Latvia - Republic of Latvia
 * 🇱🇷 Liberia - Republic of Liberia
 *  🇱🇮 Liechtenstein - Principality of Liechtenstein
 * 🇱🇹 Lithuania - Republic of Lithuania
 * 🇱🇺 Luxembourg - Grand Duchy of Luxembourg

M

 * 🇲🇽 Mexico - United Mexican States
 * 🇲🇨 Monaco - Principality of Monaco
 *  Mongolia - Mongolian People's Government (from July 11)

N

 *  Nejd
 * Emirate of Nejd (to August 22)
 * Sultanate of Nejd (from August 22)
 * 🇳🇱 Netherlands - Kingdom of the Netherlands
 *  Newfoundland - Dominion of Newfoundland
 * 🇳🇿 New Zealand - Dominion of New Zealand
 * 🇳🇮 Nicaragua - Republic of Nicaragua
 * 🇳🇴 Norway - Kingdom of Norway

O

 *  Ottoman Empire - Sublime Ottoman State

P

 * 🇵🇦 Panama - Republic of Panama
 *  Paraguay - Republic of Paraguay
 *  Persia - Persian Empire
 * 🇵🇪 Peru - Peruvian Republic
 * 🇵🇱 Poland - Republic of Poland
 * 🇵🇹 Portugal - Portuguese Republic

R

 * 🇷🇴 Romania - Kingdom of Romania
 *  Russian SFSR - Russian Socialist Federative Soviet Republic

S

 * 🇸🇲 San Marino - Most Serene Republic of San Marino
 *  Kingdom of Yugoslavia - Kingdom of Serbs, Croats, and Slovenes
 * 🇹🇭 Thailand - Kingdom of Siam
 * 🇿🇦 South Africa - Union of South Africa
 * 🇪🇸 Spain - Kingdom of Spain
 * 🇸🇪 Sweden - Kingdom of Sweden
 * 🇨🇭 Switzerland - Swiss Confederation

U

 * 🇬🇧 United Kingdom - United Kingdom of Great Britain and Ireland
 * 🇺🇸 United States - United States of America
 * 🇺🇾 Uruguay - Eastern Republic of Uruguay

V

 * 🇻🇪 Venezuela - United States of Venezuela

Y

 *  Yemen - Mutawakkilite Kingdom of Yemen

Other states

 *  Baranya-Baja - Serb-Hungarian Baranya-Baja Republic (from August 14 to August 25)
 *  - Free State Bottleneck
 *  Bukharan - Bukharan People's Soviet Republic
 *  Byelorussia - Byelorussian Socialist Soviet Republic
 *  Central Lithuania - Republic of Central Lithuania
 *  Far Eastern Republic
 *  Georgia, Soviet - Socialist Soviet Republic of Georgia (from February 11)
 *  Gilan - Persian Socialist Soviet Republic (to September)
 * 🇮🇪 Ireland - Irish Republic
 *  Khorezm - Khorezm People's Soviet Republic
 *  - Labin Republic (from March 2 to April 8)
 *  Lajtabánság - Banat of Leitha (from October 4 to November 5)
 *  Mirdita - Republic of Mirdita (from July 17 to November 20)
 *  Mongolia - Boghda Khaanate of Mongolia
 *  North Caucasian Emirate
 *  Rif - Confederal Republic of the Tribes of the Rif (from September 18)
 *  Tannu Tuva - People's Republic of Tannu Tuva (from August 14)
 *  Tavolara - Kingdom of Tavolara
 *  Tibet
 *  Ukraine, Soviet - Ukrainian Socialist Soviet Republic

League of Nations Mandates

 *  🇬🇧 🇮🇶 Mesopotamia - British Mandate of Mesopotamia (administered by the United Kingdom)
 * 🇦🇺 Nauru (administered by Australia, New Zealand and the United Kingdom)
 * 🇦🇺 New Guinea - Territory of New Guinea (administered by Australia)
 *  South Pacific Mandate (administered by Japan)
 * 🇳🇿 Western Samoa (administered by New Zealand)

A

 *  Abkhazia - Socialist Soviet Republic of Abkhazia (to March 12)
 * 🇦🇫 Afghanistan - Emirate of Afghanistan
 *  Albania - Principality of Albania
 * 🇦🇩 Andorra - Principality of Andorra
 * 🇦🇷 Argentina - Argentine Republic
 *  Armenia - Armenian Socialist Soviet Republic (to March 12)
 *  Asir - Emirate of Asir
 * 🇦🇺 Australia - Commonwealth of Australia
 * 🇦🇹 Austria - Federal State of Austria
 *  Azerbaijan - Azerbaijan Socialist Soviet Republic (to March 12)

B

 * 🇧🇪 Belgium - Kingdom of Belgium
 * 🇧🇴 Bolivia - Republic of Bolivia
 * 🇧🇷 Brazil - Republic of the United States of Brazil
 * 🇧🇬 Bulgaria - Kingdom of Bulgaria

C

 * 🇨🇦 Canada - Dominion of Canada
 *  Central America - Federation of Central America (to February 7)
 * 🇨🇱 Chile - Republic of Chile
 *  Republic of China - Republic of China
 * 🇨🇴 Colombia - Republic of Colombia
 * 🇨🇷 Costa Rica - Republic of Costa Rica
 * 🇨🇺 Cuba - Republic of Cuba
 *  Czechoslovakia - Czechoslovak Republic

D

 *  Danzig - Free City of Danzig
 * 🇩🇰 Denmark - Kingdom of Denmark
 * 🇩🇴 Dominican Republic

E

 * 🇪🇨 Ecuador - Republic of Ecuador
 * 🇪🇬 Egypt - Kingdom of Egypt (from November 11)
 * 🇸🇻 El Salvador - Republic of El Salvador (from February 4)
 * 🇪🇪 Estonia - Republic of Estonia
 * 🇪🇹 Ethiopia - Ethiopian Empire

F

 * 🇫🇮 Finland - Republic of Finland
 *  Fiume - Free State of Fiume
 * 🇫🇷 France - French Republic

G

 *  Weimar Republic - German Reich
 * 🇬🇷 Greece - Kingdom of Greece
 * 🇬🇹 Guatemala - Republic of Guatemala (from January 14)

H

 * 🇭🇹 Haiti - Republic of Haiti
 *  Kingdom of Hejaz - Kingdom of Hejaz
 *  Honduras - Republic of Honduras (from February 7)
 * 🇭🇺 Hungary - Kingdom of Hungary

I

 *  Iceland - Kingdom of Iceland
 * 🇮🇪 Ireland - Irish Free State (from December 6)
 * 🇮🇹 Italy - Kingdom of Italy

J

 *  Empire of Japan - Empire of Japan

L

 * 🇱🇻 Latvia - Republic of Latvia
 * 🇱🇷 Liberia - Republic of Liberia
 * 🇱🇮 Liechtenstein - Principality of Liechtenstein
 * 🇱🇹 Lithuania - Republic of Lithuania
 * 🇱🇺 Luxembourg - Grand Duchy of Luxembourg

M

 * 🇲🇽 Mexico - United Mexican States
 * 🇲🇨 Monaco - Principality of Monaco
 *  Mongolia - Mongolian People's Government

N

 *  Nejd - Sultanate of Nejd
 * 🇳🇱 Netherlands - Kingdom of the Netherlands
 *  Newfoundland - Dominion of Newfoundland
 * 🇳🇿 New Zealand - Dominion of New Zealand
 * 🇳🇮 Nicaragua - Republic of Nicaragua
 * 🇳🇴 Norway - Kingdom of Norway

O

 *  Ottoman Empire - Sublime Ottoman State

P

 * 🇵🇦 Panama - Republic of Panama
 *  Paraguay - Republic of Paraguay
 *  Persia - Persian Empire
 * 🇵🇪 Peru - Peruvian Republic
 * 🇵🇱 Poland - Republic of Poland
 * 🇵🇹 Portugal - Portuguese Republic

R

 * 🇷🇴 Romania - Kingdom of Romania
 *  Russian SFSR - Russian Socialist Federative Soviet Republic (to December 30)

S

 * 🇸🇲 San Marino - Most Serene Republic of San Marino
 *  Kingdom of Yugoslavia - Kingdom of Serbs, Croats, and Slovenes
 * 🇹🇭 Thailand - Kingdom of Siam
 * 🇿🇦 South Africa - Union of South Africa
 *  Soviet Union - Union of Soviet Socialist Republics (from December 30)
 * 🇪🇸 Spain - Kingdom of Spain
 * 🇸🇪 Sweden - Kingdom of Sweden
 * 🇨🇭 Switzerland - Swiss Confederation

T

 *  Transcaucasian SFSR - Transcaucasian Socialist Federative Soviet Republic (from March 12 to December 30)

U

 * 🇬🇧 United Kingdom - United Kingdom of Great Britain and Ireland
 * 🇺🇸 United States - United States of America
 * 🇺🇾 Uruguay - Eastern Republic of Uruguay

V

 * 🇻🇪 Venezuela - United States of Venezuela

Y

 *  Yemen - Mutawakkilite Kingdom of Yemen

Other states

 *  - Free State Bottleneck
 *  Bukharan - Bukharan People's Soviet Republic
 *  Byelorussia - Byelorussian Socialist Soviet Republic (to December 30)
 *  Central Lithuania - Republic of Central Lithuania (to March 24)
 *  Far Eastern Republic (to November 15)
 *  Georgia, Soviet - Socialist Soviet Republic of Georgia (to March 12)
 * 🇮🇪 Ireland - Irish Republic (to December 6)
 *  Khorezm - Khorezm People's Soviet Republic
 *  Kurdistan - Kingdom of Kurdistan (from September)
 *  North Caucasian Emirate
 *  Rif - Confederal Republic of the Tribes of the Rif
 *  Tannu Tuva - People's Republic of Tannu Tuva
 *  Tavolara - Kingdom of Tavolara
 *  Tibet
 *  Ukraine, Soviet - Ukrainian Socialist Soviet Republic (to December 30)

League of Nations Mandates

 *  British Togoland (administered by the United Kingdom from July 20)
 *  Cameroons - British Cameroons (administered by the United Kingdom from July 20)
 * 🇫🇷 Cameroun (administered by France from July 20)
 * 🇫🇷 French Togoland (administered by France from July 20)
 * 🇮🇶 Mesopotamia - British Mandate of Mesopotamia (administered by the United Kingdom)
 * 🇦🇺 Nauru (administered by Australia, New Zealand and the United Kingdom)
 * 🇦🇺 New Guinea - Territory of New Guinea (administered by Australia)
 * 🇧🇪 Ruanda-Urundi (administered by Belgium from November 1)
 *  South Pacific Mandate (administered by Japan)
 * 🇿🇦 South-West Africa (administered by South Africa from October 1)
 *  Tanganyika - Tanganyika Territory (administered by the United Kingdom from July 20)
 * 🇳🇿 Western Samoa (administered by New Zealand)

A

 * 🇦🇫 Afghanistan - Emirate of Afghanistan
 *  Albania - Principality of Albania
 * 🇦🇩 Andorra - Principality of Andorra
 * 🇦🇷 Argentina - Argentine Republic
 *  Asir - Emirate of Asir
 * 🇦🇺 Australia - Commonwealth of Australia
 * 🇦🇹 Austria - Federal State of Austria

B

 * 🇧🇪 Belgium - Kingdom of Belgium
 * 🇧🇴 Bolivia - Republic of Bolivia
 * 🇧🇷 Brazil - Republic of the United States of Brazil
 * 🇧🇬 Bulgaria - Kingdom of Bulgaria

C

 * 🇨🇦 Canada - Dominion of Canada
 * 🇨🇱 Chile - Republic of Chile
 *  Republic of China - Republic of China
 * 🇨🇴 Colombia - Republic of Colombia
 * 🇨🇷 Costa Rica - Republic of Costa Rica
 * 🇨🇺 Cuba - Republic of Cuba
 *  Czechoslovakia - Czechoslovak Republic

D

 *  Danzig - Free City of Danzig
 * 🇩🇰 Denmark - Kingdom of Denmark
 * 🇩🇴 Dominican Republic

E

 * 🇪🇨 Ecuador - Republic of Ecuador
 * 🇪🇬 Egypt - Kingdom of Egypt
 * 🇸🇻 El Salvador - Republic of El Salvador
 * 🇪🇪 Estonia - Republic of Estonia
 * 🇪🇹 Ethiopia - Ethiopian Empire

F

 * 🇫🇮 Finland - Republic of Finland
 *  Fiume - Free State of Fiume
 * 🇫🇷 France - French Republic

G

 *  Weimar Republic - German Reich
 * 🇬🇷 Greece - Kingdom of Greece
 * 🇬🇹 Guatemala - Republic of Guatemala

H

 * 🇭🇹 Haiti - Republic of Haiti
 *  Kingdom of Hejaz - Kingdom of Hejaz
 *  Honduras - Republic of Honduras
 * 🇭🇺 Hungary - Kingdom of Hungary

I

 *  Iceland - Kingdom of Iceland
 * 🇮🇪 Ireland - Irish Free State
 * 🇮🇹 Italy - Kingdom of Italy

J

 *  Empire of Japan - Empire of Japan

L

 * 🇱🇻 Latvia - Republic of Latvia
 * 🇱🇷 Liberia - Republic of Liberia
 * 🇱🇮 Liechtenstein - Principality of Liechtenstein
 * 🇱🇹 Lithuania - Republic of Lithuania
 * 🇱🇺 Luxembourg - Grand Duchy of Luxembourg

M

 * 🇲🇽 Mexico - United Mexican States
 * 🇲🇨 Monaco - Principality of Monaco
 *  Mongolia - Mongolian People's Government

N

 *  Nejd - Sultanate of Nejd
 *  Nepal - Kingdom of Nepal (from December 21)
 * 🇳🇱 Netherlands - Kingdom of the Netherlands
 *  Newfoundland - Dominion of Newfoundland
 * 🇳🇿 New Zealand - Dominion of New Zealand
 * 🇳🇮 Nicaragua - Republic of Nicaragua
 * 🇳🇴 Norway - Kingdom of Norway

O

 *  Ottoman Empire - Sublime Ottoman State (to July 24)

P

 * 🇵🇦 Panama - Republic of Panama
 *  Paraguay - Republic of Paraguay
 *  Persia - Persian Empire
 * 🇵🇪 Peru - Peruvian Republic
 * 🇵🇱 Poland - Republic of Poland
 * 🇵🇹 Portugal - Portuguese Republic

R

 * 🇷🇴 Romania - Kingdom of Romania

S

 * 🇸🇲 San Marino - Most Serene Republic of San Marino
 *  Kingdom of Yugoslavia - Kingdom of Serbs, Croats, and Slovenes
 * 🇹🇭 Thailand - Kingdom of Siam
 * 🇿🇦 South Africa - Union of South Africa
 *   Soviet Union - Union of Soviet Socialist Republics
 * 🇪🇸 Spain - Kingdom of Spain
 * 🇸🇪 Sweden - Kingdom of Sweden
 * 🇨🇭 Switzerland - Swiss Confederation

T

 * 🇹🇷 Turkey
 * Turkey (from July 24 to October 29)
 * Republic of Turkey (from October 29)

U

 * 🇬🇧 United Kingdom - United Kingdom of Great Britain and Ireland
 * 🇺🇸 United States - United States of America
 * 🇺🇾 Uruguay - Eastern Republic of Uruguay

V

 * 🇻🇪 Venezuela - United States of Venezuela

Y

 *  Yemen - Mutawakkilite Kingdom of Yemen

Other states

 *  - Free State Bottleneck (to February 23)
 *  Bukharan - Bukharan People's Soviet Republic
 *  Khorezm
 * Khorezm People's Soviet Republic (to October 20)
 * Khorezm Socialist Soviet Republic (from October 20)
 *  North Caucasian Emirate (to 1923)
 *  Rhenish Republic (from October 21)
 *  Rif - Confederal Republic of the Tribes of the Rif
 *  Tannu Tuva - People's Republic of Tannu Tuva
 *  Tavolara - Kingdom of Tavolara
 *  Tibet

League of Nations Mandates

 *  Alawite - Alawite Territory (administered by France from September 29)
 *  Aleppo - State of Aleppo (administered by France from September 29)
 *  British Togoland (administered by the United Kingdom)
 *  Cameroons - British Cameroons (administered by the United Kingdom)
 * 🇫🇷 Cameroun (administered by France)
 *  Damascus - State of Damascus (administered by France from September 29)
 * 🇫🇷 French Togoland (administered by France)
 *  Lebanon - State of Greater Lebanon (administered by France from September 29)
 * 🇮🇶 Mesopotamia - British Mandate of Mesopotamia (administered by the United Kingdom)
 * 🇦🇺 Nauru (administered by Australia, New Zealand and the United Kingdom)
 * 🇦🇺 New Guinea - Territory of New Guinea (administered by Australia)
 * 🇬🇧 Palestine - British Mandate of Palestine (administered by the United Kingdom from September 29)
 * 🇧🇪 Ruanda-Urundi (administered by Belgium)
 *  Souaida - State of Souaida (administered by France from September 29)
 *  South Pacific Mandate (administered by Japan)
 * 🇿🇦 South-West Africa (administered by South Africa)
 *  Syria - Syrian Federation (administered by France from September 29)
 *  Tanganyika - Tanganyika Territory (administered by the United Kingdom)
 * 🇯🇴 Transjordan - Emirate of Transjordan (administered by the United Kingdom from September 29)
 *  Western Samoa (administered by New Zealand)

A

 * 🇦🇫 Afghanistan - Emirate of Afghanistan
 *  Albania - Principality of Albania
 * 🇦🇩 Andorra - Principality of Andorra
 * 🇦🇷 Argentina - Argentine Republic
 *  Asir - Emirate of Asir
 * 🇦🇺 Australia - Commonwealth of Australia
 * 🇦🇹 Austria - Federal State of Austria

B

 * 🇧🇪 Belgium - Kingdom of Belgium
 * 🇧🇴 Bolivia - Republic of Bolivia
 * 🇧🇷 Brazil - Republic of the United States of Brazil
 * 🇧🇬 Bulgaria - Kingdom of Bulgaria

C

 * 🇨🇦 Canada - Dominion of Canada
 * 🇨🇱 Chile - Republic of Chile
 *  Republic of China - Republic of China
 * 🇨🇴 Colombia - Republic of Colombia
 * 🇨🇷 Costa Rica - Republic of Costa Rica
 * 🇨🇺 Cuba - Republic of Cuba
 *  Czechoslovakia - Czechoslovak Republic

D

 *  Danzig - Free City of Danzig
 * 🇩🇰 Denmark - Kingdom of Denmark
 * 🇩🇴 Dominican Republic

E

 * 🇪🇨 Ecuador - Republic of Ecuador
 * 🇪🇬 Egypt - Kingdom of Egypt
 * 🇸🇻 El Salvador - Republic of El Salvador
 * 🇪🇪 Estonia - Republic of Estonia
 * 🇪🇹 Ethiopia - Ethiopian Empire

F

 * 🇫🇮 Finland - Republic of Finland
 *  Fiume - Free State of Fiume (to March 3)
 * 🇫🇷 France - French Republic

G

 *  Weimar Republic - German Reich
 * 🇬🇷 🇬🇷 Greece
 * Kingdom of Greece (to March 25)
 * Hellenic Republic (from March 25)
 * 🇬🇹 Guatemala - Republic of Guatemala

H

 * 🇭🇹 Haiti - Republic of Haiti
 *  Kingdom of Hejaz - Kingdom of Hejaz
 *  Honduras - Republic of Honduras
 * 🇭🇺 Hungary - Kingdom of Hungary

I

 *  Iceland - Kingdom of Iceland
 * 🇮🇪 Ireland - Irish Free State
 * 🇮🇹 Italy - Kingdom of Italy

J

 *  Empire of Japan - Empire of Japan

L

 * 🇱🇻 Latvia - Republic of Latvia
 * 🇱🇷 Liberia - Republic of Liberia
 * 🇱🇮 Liechtenstein - Principality of Liechtenstein
 * 🇱🇹 Lithuania - Republic of Lithuania
 * 🇱🇺 Luxembourg - Grand Duchy of Luxembourg

M

 * 🇲🇽 Mexico - United Mexican States
 * 🇲🇨 Monaco - Principality of Monaco
 *  🇲🇳 Mongolia
 * Mongolian People's Government (to November 24)
 * Mongolian People's Republic (from November 24)

N

 *  Nejd - Sultanate of Nejd
 *  Nepal - Kingdom of Nepal
 * 🇳🇱 Netherlands - Kingdom of the Netherlands
 *  Newfoundland - Dominion of Newfoundland
 * 🇳🇿 New Zealand - Dominion of New Zealand
 * 🇳🇮 Nicaragua - Republic of Nicaragua
 * 🇳🇴 Norway - Kingdom of Norway

P

 * 🇵🇦 Panama - Republic of Panama
 *  Paraguay - Republic of Paraguay
 *  Persia - Persian Empire
 * 🇵🇪 Peru - Peruvian Republic
 * 🇵🇱 Poland - Republic of Poland
 * 🇵🇹 Portugal - Portuguese Republic

R

 * 🇷🇴 Romania - Kingdom of Romania

S

 * 🇸🇲 San Marino - Most Serene Republic of San Marino
 *  Kingdom of Yugoslavia - Kingdom of Serbs, Croats, and Slovenes
 * 🇹🇭 Thailand - Kingdom of Siam
 * 🇿🇦 South Africa - Union of South Africa
 *  Soviet Union - Union of Soviet Socialist Republics
 * 🇪🇸 Spain - Kingdom of Spain
 * 🇸🇪 Sweden - Kingdom of Sweden
 * 🇨🇭 Switzerland - Swiss Confederation

T

 * 🇹🇷 Turkey - Republic of Turkey

U

 * 🇬🇧 United Kingdom - United Kingdom of Great Britain and Ireland
 * 🇺🇸 United States - United States of America
 * 🇺🇾 Uruguay - Eastern Republic of Uruguay

V

 * 🇻🇪 Venezuela - United States of Venezuela

Y

 *  Yemen - Mutawakkilite Kingdom of Yemen

Other states

 *  Bukharan
 * Bukharan People's Soviet Republic (to 1924)
 * Bukharan Socialist Soviet Republic (from 1924)
 *  Khorezm - Khorezm Socialist Soviet Republic
 *  Kurdistan - Kingdom of Kurdistan (to July)
 *  Rhenish Republic (to November 26)
 *  Rif - Confederal Republic of the Tribes of the Rif
 *  Tannu Tuva - People's Republic of Tannu Tuva
 *  Tavolara - Kingdom of Tavolara
 *  Tibet

League of Nations Mandates

 *  Alawite - Alawite Territory (administered by France)
 *  Aleppo - State of Aleppo (administered by France)
 *  British Togoland (administered by the United Kingdom)
 *  Cameroons - British Cameroons (administered by the United Kingdom)
 * 🇫🇷 Cameroun (administered by France)
 *  Damascus - State of Damascus (administered by France)
 * 🇫🇷 French Togoland (administered by France)
 *  Lebanon - State of Greater Lebanon (administered by France)
 * 🇮🇶 Mesopotamia - British Mandate of Mesopotamia (administered by the United Kingdom)
 * 🇦🇺 Nauru (administered by Australia, New Zealand and the United Kingdom)
 * 🇦🇺 New Guinea - Territory of New Guinea (administered by Australia)
 * 🇬🇧 Palestine - British Mandate of Palestine (administered by the United Kingdom)
 * 🇧🇪 Ruanda-Urundi (administered by Belgium)
 *  Souaida - State of Souaida (administered by France)
 *  South Pacific Mandate (administered by Japan)
 * 🇿🇦 South-West Africa (administered by South Africa)
 *  Syria (administered by France)
 * Syrian Federation (to July)
 * State of Syria (from July)
 *  Tanganyika - Tanganyika Territory (administered by the United Kingdom)
 * 🇯🇴 Transjordan - Emirate of Transjordan (administered by the United Kingdom)
 *  Western Samoa (administered by New Zealand)

A

 * 🇦🇫 Afghanistan - Emirate of Afghanistan
 *  Albania
 * Principality of Albania (to February 1)
 * Albanian Republic (from February 1)
 * 🇦🇩 Andorra - Principality of Andorra
 * 🇦🇷 Argentina - Argentine Republic
 *  Asir - Emirate of Asir
 * 🇦🇺 Australia - Commonwealth of Australia
 * 🇦🇹 Austria - Federal State of Austria

B

 * 🇧🇪 Belgium - Kingdom of Belgium
 * 🇧🇴 Bolivia - Republic of Bolivia
 * 🇧🇷 Brazil - Republic of the United States of Brazil
 * 🇧🇬 Bulgaria - Kingdom of Bulgaria

C

 * 🇨🇦 Canada - Dominion of Canada
 * 🇨🇱 Chile - Republic of Chile
 *  Republic of China - Republic of China
 * 🇨🇴 Colombia - Republic of Colombia
 * 🇨🇷 Costa Rica - Republic of Costa Rica
 * 🇨🇺 Cuba - Republic of Cuba
 *  Czechoslovakia - Czechoslovak Republic

D

 *  Danzig - Free City of Danzig
 * 🇩🇰 Denmark - Kingdom of Denmark
 * 🇩🇴 Dominican Republic

E

 * 🇪🇨 Ecuador - Republic of Ecuador
 * 🇪🇬 Egypt - Kingdom of Egypt
 * 🇸🇻 El Salvador - Republic of El Salvador
 * 🇪🇪 Estonia - Republic of Estonia
 * 🇪🇹 Ethiopia - Ethiopian Empire

F

 * 🇫🇮 Finland - Republic of Finland
 * 🇫🇷 France - French Republic

G

 *  Weimar Republic - German Reich
 * 🇬🇷 Greece - Hellenic Republic
 * 🇬🇹 Guatemala - Republic of Guatemala

H

 * 🇭🇹 Haiti - Republic of Haiti
 *  Kingdom of Hejaz - Kingdom of Hejaz
 *  Honduras - Republic of Honduras
 * 🇭🇺 Hungary - Kingdom of Hungary

I

 *  Iceland - Kingdom of Iceland
 * 🇮🇪 Ireland - Irish Free State
 * 🇮🇹 Italy - Kingdom of Italy

J

 *  Empire of Japan - Empire of Japan

L

 * 🇱🇻 Latvia - Republic of Latvia
 * 🇱🇷 Liberia - Republic of Liberia
 * 🇱🇮 Liechtenstein - Principality of Liechtenstein
 * 🇱🇹 Lithuania - Republic of Lithuania
 * 🇱🇺 Luxembourg - Grand Duchy of Luxembourg

M

 * 🇲🇽 Mexico - United Mexican States
 * 🇲🇨 Monaco - Principality of Monaco
 * 🇲🇳 Mongolia - Mongolian People's Republic

N

 *  Nejd - Sultanate of Nejd
 *  Nepal - Kingdom of Nepal
 * 🇳🇱 Netherlands - Kingdom of the Netherlands
 *  Newfoundland - Dominion of Newfoundland
 * 🇳🇿 New Zealand - Dominion of New Zealand
 * 🇳🇮 Nicaragua - Republic of Nicaragua
 * 🇳🇴 Norway - Kingdom of Norway

P

 * 🇵🇦 Panama - Republic of Panama
 *  Paraguay - Republic of Paraguay
 *  🇮🇷 Persia
 * Persian Empire (to October 31)
 * Imperial State of Persia (from October 31)
 * 🇵🇪 Peru - Peruvian Republic
 * 🇵🇱 Poland - Republic of Poland
 * 🇵🇹 Portugal - Portuguese Republic

R

 * 🇷🇴 Romania - Kingdom of Romania

S

 * 🇸🇲 San Marino - Most Serene Republic of San Marino
 *  Kingdom of Yugoslavia - Kingdom of Serbs, Croats, and Slovenes
 * 🇹🇭 Thailand - Kingdom of Siam
 * 🇿🇦 South Africa - Union of South Africa
 *  Soviet Union - Union of Soviet Socialist Republics
 * 🇪🇸 Spain - Kingdom of Spain
 * 🇸🇪 Sweden - Kingdom of Sweden
 * 🇨🇭 Switzerland - Swiss Confederation

T

 * 🇹🇷 Turkey - Republic of Turkey

U

 * 🇬🇧 United Kingdom - United Kingdom of Great Britain and Ireland
 * 🇺🇸 United States - United States of America
 * 🇺🇾 Uruguay - Eastern Republic of Uruguay

V

 * 🇻🇪 Venezuela - United States of Venezuela

Y

 *  Yemen - Mutawakkilite Kingdom of Yemen

Other states

 *  Bukharan - Bukharan Socialist Soviet Republic (to February 17)
 *  Khorezm - Khorezm Socialist Soviet Republic (to February 17)
 *  Kurdistan - Kingdom of Kurdistan (from February to April 14)
 *  Rif - Confederal Republic of the Tribes of the Rif
 *  Tannu Tuva - People's Republic of Tannu Tuva
 *  Tavolara - Kingdom of Tavolara
 *  Tibet

League of Nations Mandates

 *  Alawite (administered by France)
 * Alawite Territory (to 1925)
 * Alawite State (from 1925)
 *  Aleppo - State of Aleppo (administered by France to 1925)
 *  British Togoland (administered by the United Kingdom)
 *  Cameroons - British Cameroons (administered by the United Kingdom)
 * 🇫🇷 Cameroun (administered by France)
 *  Damascus - State of Damascus (administered by France to 1925)
 * 🇫🇷 French Togoland (administered by France)
 *  Lebanon - State of Greater Lebanon (administered by France)
 * 🇮🇶 Mesopotamia - British Mandate of Mesopotamia (administered by the United Kingdom)
 * 🇦🇺 Nauru (administered by Australia, New Zealand and the United Kingdom)
 * 🇦🇺 New Guinea - Territory of New Guinea (administered by Australia)
 * 🇬🇧 Palestine - British Mandate of Palestine (administered by the United Kingdom)
 * 🇧🇪 Ruanda-Urundi (administered by Belgium)
 *  Souaida - State of Souaida (administered by France)
 *  South Pacific Mandate (administered by Japan)
 * 🇿🇦 South-West Africa (administered by South Africa)
 *  Syria - State of Syria (administered by France)
 *  Tanganyika - Tanganyika Territory (administered by the United Kingdom)
 * 🇯🇴 Transjordan - Emirate of Transjordan (administered by the United Kingdom)
 *  Western Samoa (administered by New Zealand)

A

 * 🇦🇫 Afghanistan - Emirate of Afghanistan
 *  Albania - Albanian Republic
 * 🇦🇩 Andorra - Principality of Andorra
 * 🇦🇷 Argentina - Argentine Republic
 *  Asir - Emirate of Asir (to October 21)
 * 🇦🇺 Australia - Commonwealth of Australia
 * 🇦🇹 Austria - Federal State of Austria

B

 * 🇧🇪 Belgium - Kingdom of Belgium
 * 🇧🇴 Bolivia - Republic of Bolivia
 * 🇧🇷 Brazil - Republic of the United States of Brazil
 * 🇧🇬 Bulgaria - Kingdom of Bulgaria

C

 * 🇨🇦 Canada - Dominion of Canada
 * 🇨🇱 Chile - Republic of Chile
 *  Republic of China - Republic of China
 * 🇨🇴 Colombia - Republic of Colombia
 * 🇨🇷 Costa Rica - Republic of Costa Rica
 * 🇨🇺 Cuba - Republic of Cuba
 *  Czechoslovakia - Czechoslovak Republic

D

 *  Danzig - Free City of Danzig
 * 🇩🇰 Denmark - Kingdom of Denmark
 * 🇩🇴 Dominican Republic

E

 * 🇪🇨 Ecuador - Republic of Ecuador
 * 🇪🇬 Egypt - Kingdom of Egypt
 * 🇸🇻 El Salvador - Republic of El Salvador
 * 🇪🇪 Estonia - Republic of Estonia
 * 🇪🇹 Ethiopia - Ethiopian Empire

F

 * 🇫🇮 Finland - Republic of Finland
 * 🇫🇷 France - French Republic

G

 *  Weimar Republic - German Reich
 * 🇬🇷 Greece - Hellenic Republic
 * 🇬🇹 Guatemala - Republic of Guatemala

H

 * 🇭🇹 Haiti - Republic of Haiti
 *  Kingdom of Hejaz - Kingdom of Hejaz (to January 8)
 *  Hejaz and Nejd (Personal Union, from January 8)
 * Hejaz - Kingdom of Hejaz (from January 8)
 * Nejd - Sultanate of Nejd (from January 8)
 *  Honduras - Republic of Honduras
 * 🇭🇺 Hungary - Kingdom of Hungary

I

 *  Iceland - Kingdom of Iceland
 * 🇮🇪 Ireland - Irish Free State
 * 🇮🇹 Italy - Kingdom of Italy

J

 *  Empire of Japan - Empire of Japan

L

 * 🇱🇻 Latvia - Republic of Latvia
 * 🇱🇷 Liberia - Republic of Liberia
 * 🇱🇮 Liechtenstein - Principality of Liechtenstein
 * 🇱🇹 Lithuania - Republic of Lithuania
 * 🇱🇺 Luxembourg - Grand Duchy of Luxembourg

M

 * 🇲🇽 Mexico - United Mexican States
 * 🇲🇨 Monaco - Principality of Monaco
 * 🇲🇳 Mongolia - Mongolian People's Republic

N

 *  Nejd - Sultanate of Nejd (to January 8)
 *  Nepal - Kingdom of Nepal
 * 🇳🇱 Netherlands - Kingdom of the Netherlands
 *  Newfoundland - Dominion of Newfoundland
 * 🇳🇿 New Zealand - Dominion of New Zealand
 * 🇳🇮 Nicaragua - Republic of Nicaragua
 * 🇳🇴 Norway - Kingdom of Norway

P

 * 🇵🇦 Panama - Republic of Panama
 *  Paraguay - Republic of Paraguay
 * 🇮🇷 Persia - Imperial State of Persia
 * 🇵🇪 Peru - Peruvian Republic
 * 🇵🇱 Poland - Republic of Poland
 * 🇵🇹 Portugal - Portuguese Republic

R

 * 🇷🇴 Romania - Kingdom of Romania

S

 * 🇸🇲 San Marino - Most Serene Republic of San Marino
 *  Kingdom of Yugoslavia - Kingdom of Serbs, Croats, and Slovenes
 * 🇹🇭 Thailand - Kingdom of Siam
 * 🇿🇦 South Africa - Union of South Africa
 *  Soviet Union - Union of Soviet Socialist Republics
 * 🇪🇸 Spain - Kingdom of Spain
 * 🇸🇪 Sweden - Kingdom of Sweden
 * 🇨🇭 Switzerland - Swiss Confederation

T

 * 🇹🇷 Turkey - Republic of Turkey

U

 * 🇬🇧 United Kingdom - United Kingdom of Great Britain and Ireland
 * 🇺🇸 United States - United States of America
 * 🇺🇾 Uruguay - Eastern Republic of Uruguay

V

 * 🇻🇪 Venezuela - United States of Venezuela

Y

 *  Yemen - Mutawakkilite Kingdom of Yemen

Other states

 *  Rif - Confederal Republic of the Tribes of the Rif (to May 27)
 *  Tannu Tuva
 * People's Republic of Tannu Tuva (to November 24)
 * Tuvan People's Republic (from November 24)
 *  Tavolara - Kingdom of Tavolara
 *  Tibet

League of Nations Mandates

 *  Alawite - Alawite State (administered by France)
 *  British Togoland (administered by the United Kingdom)
 *  Cameroons - British Cameroons (administered by the United Kingdom)
 * 🇫🇷 Cameroun (administered by France)
 * 🇫🇷 French Togoland (administered by France)
 *  Lebanon - State of Greater Lebanon (administered by France)
 * 🇮🇶 Mesopotamia - British Mandate of Mesopotamia (administered by the United Kingdom)
 * 🇦🇺 Nauru (administered by Australia, New Zealand and the United Kingdom)
 * 🇦🇺 New Guinea - Territory of New Guinea (administered by Australia)
 * 🇬🇧 Palestine - British Mandate of Palestine (administered by the United Kingdom)
 * 🇧🇪 Ruanda-Urundi (administered by Belgium)
 *  Souaida - State of Souaida (administered by France)
 *  South Pacific Mandate (administered by Japan)
 * 🇿🇦 South-West Africa (administered by South Africa)
 *  Syria - State of Syria (administered by France)
 *  Tanganyika - Tanganyika Territory (administered by the United Kingdom)
 * 🇯🇴 Transjordan - Emirate of Transjordan (administered by the United Kingdom)
 *  Western Samoa (administered by New Zealand)

A

 * 🇦🇫 Afghanistan - Emirate of Afghanistan
 *  Albania - Albanian Republic
 * 🇦🇩 Andorra - Principality of Andorra
 * 🇦🇷 Argentina - Argentine Republic
 * 🇦🇺 Australia - Commonwealth of Australia
 * 🇦🇹 Austria - Federal State of Austria

B

 * 🇧🇪 Belgium - Kingdom of Belgium
 * 🇧🇴 Bolivia - Republic of Bolivia
 * 🇧🇷 Brazil - Republic of the United States of Brazil
 * 🇧🇬 Bulgaria - Kingdom of Bulgaria

C

 * 🇨🇦 Canada - Dominion of Canada
 * 🇨🇱 Chile - Republic of Chile
 *  Republic of China - Republic of China
 * 🇨🇴 Colombia - Republic of Colombia
 * 🇨🇷 Costa Rica - Republic of Costa Rica
 * 🇨🇺 Cuba - Republic of Cuba
 *  Czechoslovakia - Czechoslovak Republic

D

 *  Danzig - Free City of Danzig
 * 🇩🇰 Denmark - Kingdom of Denmark
 * 🇩🇴 Dominican Republic

E

 * 🇪🇨 Ecuador - Republic of Ecuador
 * 🇪🇬 Egypt - Kingdom of Egypt
 * 🇸🇻 El Salvador - Republic of El Salvador
 * 🇪🇪 Estonia - Republic of Estonia
 * 🇪🇹 Ethiopia - Ethiopian Empire

F

 * 🇫🇮 Finland - Republic of Finland
 * 🇫🇷 France - French Republic

G

 *  Weimar Republic - German Reich
 * 🇬🇷 Greece - Hellenic Republic
 * 🇬🇹 Guatemala - Republic of Guatemala

H

 * 🇭🇹 Haiti - Republic of Haiti
 *  Hejaz and Nejd (Personal Union)
 * Hejaz - Kingdom of Hejaz
 * Nejd
 * Sultanate of Nejd (to January 29)
 * Kingdom of Nejd and its Dependencies (from January 29)
 *  Honduras - Republic of Honduras
 * 🇭🇺 Hungary - Kingdom of Hungary

I

 *  Iceland - Kingdom of Iceland
 * 🇮🇪 Ireland - Irish Free State
 * 🇮🇹 Italy - Kingdom of Italy

J

 *  Empire of Japan - Empire of Japan

L

 * 🇱🇻 Latvia - Republic of Latvia
 * 🇱🇷 Liberia - Republic of Liberia
 * 🇱🇮 Liechtenstein - Principality of Liechtenstein
 * 🇱🇹 Lithuania - Republic of Lithuania
 * 🇱🇺 Luxembourg - Grand Duchy of Luxembourg

M

 * 🇲🇽 Mexico - United Mexican States
 * 🇲🇨 Monaco - Principality of Monaco
 * 🇲🇳 Mongolia - Mongolian People's Republic

N

 *  Nepal - Kingdom of Nepal
 * 🇳🇱 Netherlands - Kingdom of the Netherlands
 *  Newfoundland - Dominion of Newfoundland
 * 🇳🇿 New Zealand - Dominion of New Zealand
 * 🇳🇮 Nicaragua - Republic of Nicaragua
 * 🇳🇴 Norway - Kingdom of Norway

P

 * 🇵🇦 Panama - Republic of Panama
 *  Paraguay - Republic of Paraguay
 * 🇮🇷 Persia - Imperial State of Persia
 * 🇵🇪 Peru - Peruvian Republic
 * 🇵🇱 Poland - Republic of Poland
 * 🇵🇹 Portugal - Portuguese Republic

R

 * 🇷🇴 Romania - Kingdom of Romania

S

 * 🇸🇲 San Marino - Most Serene Republic of San Marino
 *  Kingdom of Yugoslavia - Kingdom of Serbs, Croats, and Slovenes
 * 🇹🇭 Thailand - Kingdom of Siam
 * 🇿🇦 South Africa - Union of South Africa
 *  Soviet Union - Union of Soviet Socialist Republics
 * 🇪🇸 Spain - Kingdom of Spain
 * 🇸🇪 Sweden - Kingdom of Sweden
 * 🇨🇭 Switzerland - Swiss Confederation

T

 * 🇹🇷 Turkey - Republic of Turkey

U

 * 🇬🇧 United Kingdom
 * United Kingdom of Great Britain and Ireland (to April 12)
 * United Kingdom of Great Britain and Northern Ireland (from April 12)
 * 🇺🇸 United States - United States of America
 * 🇺🇾 Uruguay - Eastern Republic of Uruguay

V

 * 🇻🇪 Venezuela - United States of Venezuela

Y

 *  🇾🇪 Yemen - Mutawakkilite Kingdom of Yemen

Other states

 *  Ararat - Republic of Ararat (from October)
 *  Tannu Tuva - Tuvan People's Republic
 *  Tavolara - Kingdom of Tavolara
 *  Tibet

League of Nations Mandates

 *  Alawite - Alawite State (administered by France)
 *  British Togoland (administered by the United Kingdom)
 *  Cameroons - British Cameroons (administered by the United Kingdom)
 * 🇫🇷 Cameroun (administered by France)
 * 🇫🇷 French Togoland (administered by France)
 * For Jabal ad-Druze, see Souaida
 *  Lebanon - State of Greater Lebanon (administered by France)
 * 🇮🇶 Mesopotamia - British Mandate of Mesopotamia (administered by the United Kingdom)
 * 🇦🇺 Nauru (administered by Australia, New Zealand and the United Kingdom)
 * 🇦🇺 New Guinea - Territory of New Guinea (administered by Australia)
 * 🇬🇧 Palestine - British Mandate of Palestine (administered by the United Kingdom)
 * 🇧🇪 Ruanda-Urundi (administered by Belgium)
 *  Souaida (to 1927), Jabal ad-Druze (from 1927) (administered by France)
 * State of Souaida (to 1927)
 * Jebel Druze State (from 1927)
 *  South Pacific Mandate (administered by Japan)
 * 🇿🇦 South-West Africa (administered by South Africa)
 *  Syria - State of Syria (administered by France)
 *  Tanganyika - Tanganyika Territory (administered by the United Kingdom)
 * 🇯🇴 Transjordan - Emirate of Transjordan (administered by the United Kingdom)
 *  Western Samoa (administered by New Zealand)

A

 * 🇦🇫 🇦🇫 Afghanistan - Emirate of Afghanistan
 *        Albania
 * Albanian Republic (to September 1)
 * Albanian Kingdom (from September 1)
 * 🇦🇩 Andorra - Principality of Andorra
 * 🇦🇷 Argentina - Argentine Republic
 * 🇦🇺 Australia - Commonwealth of Australia
 * 🇦🇹 Austria - Federal State of Austria

B

 * 🇧🇪 Belgium - Kingdom of Belgium
 * 🇧🇴 Bolivia - Republic of Bolivia
 * 🇧🇷 Brazil - Republic of the United States of Brazil
 * 🇧🇬 Bulgaria - Kingdom of Bulgaria

C

 * 🇨🇦 Canada - Dominion of Canada
 * 🇨🇱 Chile - Republic of Chile
 *  Republic of China - Republic of China
 * 🇨🇴 Colombia - Republic of Colombia
 * 🇨🇷 Costa Rica - Republic of Costa Rica
 * 🇨🇺 Cuba - Republic of Cuba
 *  Czechoslovakia - Czechoslovak Republic

D

 *  Danzig - Free City of Danzig
 * 🇩🇰 Denmark - Kingdom of Denmark
 * 🇩🇴 Dominican Republic

E

 * 🇪🇨 Ecuador - Republic of Ecuador
 * 🇪🇬 Egypt - Kingdom of Egypt
 * 🇸🇻 El Salvador - Republic of El Salvador
 * 🇪🇪 Estonia - Republic of Estonia
 * 🇪🇹 Ethiopia - Ethiopian Empire

F

 * 🇫🇮 Finland - Republic of Finland
 * 🇫🇷 France - French Republic

G

 *  Weimar Republic - German Reich
 * 🇬🇷 Greece - Hellenic Republic
 * 🇬🇹 Guatemala - Republic of Guatemala

H

 * 🇭🇹 Haiti - Republic of Haiti
 *  Hejaz and Nejd (Personal Union)
 * Hejaz - Kingdom of Hejaz
 * Nejd - Kingdom of Nejd and its Dependencies
 *  Honduras - Republic of Honduras
 * 🇭🇺 Hungary - Kingdom of Hungary

I

 *  Iceland - Kingdom of Iceland
 * 🇮🇪 Ireland - Irish Free State
 * 🇮🇹 Italy - Kingdom of Italy

J

 *  Empire of Japan - Empire of Japan

L

 * 🇱🇻 Latvia - Republic of Latvia
 * 🇱🇷 Liberia - Republic of Liberia
 * 🇱🇮 Liechtenstein - Principality of Liechtenstein
 * 🇱🇹 Lithuania - Republic of Lithuania
 * 🇱🇺 Luxembourg - Grand Duchy of Luxembourg

M

 * 🇲🇽 Mexico - United Mexican States
 * 🇲🇨 Monaco - Principality of Monaco
 * 🇲🇳 Mongolia - Mongolian People's Republic

N

 *  Nepal - Kingdom of Nepal
 * 🇳🇱 Netherlands - Kingdom of the Netherlands
 *  Newfoundland - Dominion of Newfoundland
 * 🇳🇿 New Zealand - Dominion of New Zealand
 * 🇳🇮 Nicaragua - Republic of Nicaragua
 * 🇳🇴 Norway - Kingdom of Norway

P

 * 🇵🇦 Panama - Republic of Panama
 *  Paraguay - Republic of Paraguay
 * 🇮🇷 Persia - Imperial State of Persia
 * 🇵🇪 Peru - Peruvian Republic
 * 🇵🇱 Poland - Republic of Poland
 * 🇵🇹 Portugal - Portuguese Republic

R

 * 🇷🇴 Romania - Kingdom of Romania

S

 * 🇸🇲 San Marino - Most Serene Republic of San Marino
 *  Kingdom of Yugoslavia - Kingdom of Serbs, Croats, and Slovenes
 * 🇹🇭 Thailand - Kingdom of Siam
 * 🇿🇦 🇿🇦 South Africa - Union of South Africa
 *  Soviet Union - Union of Soviet Socialist Republics
 * 🇪🇸 Spain - Kingdom of Spain
 * 🇸🇪 Sweden - Kingdom of Sweden
 * 🇨🇭 Switzerland - Swiss Confederation

T

 * 🇹🇷 Turkey - Republic of Turkey

U

 * 🇬🇧 United Kingdom - United Kingdom of Great Britain and Northern Ireland
 * 🇺🇸 United States - United States of America
 * 🇺🇾 Uruguay - Eastern Republic of Uruguay

V

 * 🇻🇪 Venezuela - United States of Venezuela

Y

 * 🇾🇪 Yemen - Mutawakkilite Kingdom of Yemen

Other states

 *  Ararat - Republic of Ararat
 *  Tannu Tuva - Tuvan People's Republic
 *  Tavolara - Kingdom of Tavolara
 *  Tibet

League of Nations Mandates

 *  Alawite - Alawite State (administered by France)
 *  British Togoland (administered by the United Kingdom)
 *  Cameroons - British Cameroons (administered by the United Kingdom)
 * 🇫🇷 Cameroun (administered by France)
 * 🇫🇷 French Togoland (administered by France)
 *  Jabal ad-Druze - Jebel Druze State (administered by France)
 *  Lebanon - State of Greater Lebanon (administered by France)
 * 🇮🇶 Mesopotamia - British Mandate of Mesopotamia (administered by the United Kingdom)
 * 🇦🇺 Nauru (administered by Australia, New Zealand and the United Kingdom)
 * 🇦🇺 New Guinea - Territory of New Guinea (administered by Australia)
 *  Palestine - British Mandate of Palestine (administered by the United Kingdom)
 * 🇧🇪 Ruanda-Urundi (administered by Belgium)
 *  South Pacific Mandate (administered by Japan)
 * 🇿🇦 🇿🇦 South-West Africa (administered by South Africa)
 *  Syria - State of Syria (administered by France)
 *  Tanganyika - Tanganyika Territory (administered by the United Kingdom)
 * 🇯🇴 Transjordan - Emirate of Transjordan (administered by the United Kingdom)
 *  Western Samoa (administered by New Zealand)

A

 * 🇦🇫 🇦🇫 🇦🇫 Afghanistan
 * Emirate of Afghanistan (to 1929)
 * Kingdom of Afghanistan (from 1929)
 *  Albania - Albanian Kingdom
 * 🇦🇩 Andorra - Principality of Andorra
 * 🇦🇷 Argentina - Argentine Republic
 * 🇦🇺 Australia - Commonwealth of Australia
 * 🇦🇹 Austria - Federal State of Austria

B

 * 🇧🇪 Belgium - Kingdom of Belgium
 * 🇧🇴 Bolivia - Republic of Bolivia
 * 🇧🇷 Brazil - Republic of the United States of Brazil
 * 🇧🇬 Bulgaria - Kingdom of Bulgaria

C

 * 🇨🇦 Canada - Dominion of Canada
 * 🇨🇱 Chile - Republic of Chile
 *  Republic of China - Republic of China
 * 🇨🇴 Colombia - Republic of Colombia
 * 🇨🇷 Costa Rica - Republic of Costa Rica
 * 🇨🇺 Cuba - Republic of Cuba
 *  Czechoslovakia - Czechoslovak Republic

D

 *  Danzig - Free City of Danzig
 * 🇩🇰 Denmark - Kingdom of Denmark
 * 🇩🇴 Dominican Republic

E

 * 🇪🇨 Ecuador - Republic of Ecuador
 * 🇪🇬 Egypt - Kingdom of Egypt
 * 🇸🇻 El Salvador - Republic of El Salvador
 * 🇪🇪 Estonia - Republic of Estonia
 * 🇪🇹 Ethiopia - Ethiopian Empire

F

 * 🇫🇮 Finland - Republic of Finland
 * 🇫🇷 France - French Republic

G

 *  Weimar Republic - German Reich
 * 🇬🇷 Greece - Hellenic Republic
 * 🇬🇹 Guatemala - Republic of Guatemala

H

 * 🇭🇹 Haiti - Republic of Haiti
 *  Hejaz and Nejd (Personal Union)
 * Hejaz - Kingdom of Hejaz
 * Nejd - Kingdom of Nejd and its Dependencies
 *  Honduras - Republic of Honduras
 * 🇭🇺 Hungary - Kingdom of Hungary

I

 *  Iceland - Kingdom of Iceland
 * 🇮🇪 Ireland - Irish Free State
 * 🇮🇹 Italy - Kingdom of Italy

J

 *  Empire of Japan - Empire of Japan

L

 * 🇱🇻 Latvia - Republic of Latvia
 * 🇱🇷 Liberia - Republic of Liberia
 * 🇱🇮 Liechtenstein - Principality of Liechtenstein
 * 🇱🇹 Lithuania - Republic of Lithuania
 * 🇱🇺 Luxembourg - Grand Duchy of Luxembourg

M

 * 🇲🇽 Mexico - United Mexican States
 * 🇲🇨 Monaco - Principality of Monaco
 * 🇲🇳 Mongolia - Mongolian People's Republic

N

 *  Nepal - Kingdom of Nepal
 * 🇳🇱 Netherlands - Kingdom of the Netherlands
 *  Newfoundland - Dominion of Newfoundland
 * 🇳🇿 New Zealand - Dominion of New Zealand
 * 🇳🇮 Nicaragua - Republic of Nicaragua
 * 🇳🇴 Norway - Kingdom of Norway

P

 * 🇵🇦 Panama - Republic of Panama
 *  Paraguay - Republic of Paraguay
 * 🇮🇷 Persia - Imperial State of Persia
 * 🇵🇪 Peru - Peruvian Republic
 * 🇵🇱 Poland - Republic of Poland
 * 🇵🇹 Portugal - Portuguese Republic

R

 * 🇷🇴 Romania - Kingdom of Romania

S

 * 🇸🇲 San Marino - Most Serene Republic of San Marino
 *  Kingdom of Yugoslavia (to January 6), Yugoslavia (from January 6)
 * Kingdom of Serbs, Croats, and Slovenes (to January 6)
 * Kingdom of Yugoslavia (from January 6)
 * 🇹🇭 Thailand - Kingdom of Siam
 * 🇿🇦 South Africa - Union of South Africa
 *  Soviet Union - Union of Soviet Socialist Republics
 * 🇪🇸 Spain - Kingdom of Spain
 * 🇸🇪 Sweden - Kingdom of Sweden
 * 🇨🇭 Switzerland - Swiss Confederation

T

 * 🇹🇷 Turkey - Republic of Turkey

U

 * 🇬🇧 United Kingdom - United Kingdom of Great Britain and Northern Ireland
 * 🇺🇸 United States - United States of America
 * 🇺🇾 Uruguay - Eastern Republic of Uruguay

V

 * 🇻🇦 Vatican City - State of the Vatican City (from February 11)
 * 🇻🇪 Venezuela - United States of Venezuela

Y

 * 🇾🇪 Yemen - Mutawakkilite Kingdom of Yemen
 * For Yugoslavia, see Serbs, Croats, and Slovenes.

Other states

 *  Ararat - Republic of Ararat
 *  Tannu Tuva - Tuvan People's Republic
 *  Tavolara - Kingdom of Tavolara
 *  Tibet

League of Nations Mandates

 *  Alawite - Alawite State (administered by France)
 *  British Togoland (administered by the United Kingdom)
 *  Cameroons - British Cameroons (administered by the United Kingdom)
 * 🇫🇷 Cameroun (administered by France)
 * 🇫🇷 French Togoland (administered by France)
 *  Jabal ad-Druze - Jebel Druze State (administered by France)
 *  Lebanon - State of Greater Lebanon (administered by France)
 * 🇮🇶 Mesopotamia - British Mandate of Mesopotamia (administered by the United Kingdom)
 * 🇦🇺 Nauru (administered by Australia, New Zealand and the United Kingdom)
 * 🇦🇺 New Guinea - Territory of New Guinea (administered by Australia)
 *  Palestine - British Mandate of Palestine (administered by the United Kingdom)
 * 🇧🇪 Ruanda-Urundi (administered by Belgium)
 *  South Pacific Mandate (administered by Japan)
 * 🇿🇦 South-West Africa (administered by South Africa)
 *  Syria - State of Syria (administered by France)
 *  Tanganyika - Tanganyika Territory (administered by the United Kingdom)
 * 🇯🇴 Transjordan - Emirate of Transjordan (administered by the United Kingdom)
 *  Western Samoa (administered by New Zealand)