Date
|
Country
|
September 1, 1939
|
Poland
|
September 3, 1939
|
United Kingdom
|
September 3, 1939
|
France
|
September 3, 1939
|
Australia
|
September 3, 1939
|
New Zealand
|
September 3, 1939
|
India
|
September 3, 1939
|
Tonga
|
September 3, 1939
|
Transjordan
|
September 3, 1939
|
Morocco
|
September 3, 1939
|
Tunisia
|
September 4, 1939
|
Nepal
|
September 6, 1939
|
South Africa
|
September 10, 1939
|
Bahrain
|
September 10, 1939
|
Canada
|
September 10, 1939
|
Oman
|
November 9, 1939
|
Kuwait
|
April 9, 1940
|
Denmark
|
April 9, 1940
|
Norway
|
May 19, 1940
|
Belgium
|
May 19, 1940
|
Netherlands
|
May 19, 1940
|
Luxembourg
|
September 9, 1940
|
Egypt
|
September 23, 1940
|
Free France
|
October 28, 1940
|
Greece
|
April 6, 1941
|
Yugoslavia
|
June 22, 1941
|
Soviet Union
|
June 22, 1941
|
Tuva
|
December 7, 1941
|
United States
|
December 7, 1941
|
Siam
|
December 7, 1941
|
Panama
|
December 8, 1941
|
Costa Rica
|
December 8, 1941
|
Dominican Republic
|
December 8, 1941
|
El Salvador
|
December 8, 1941
|
Guatemala
|
December 8, 1941
|
Haiti
|
December 8, 1941
|
Honduras
|
December 8, 1941
|
Nicaragua
|
December 8, 1941
|
Philippines
|
December 8, 1941
|
Mongolia
|
|
Date
|
Country
|
December 8, 1941
|
British Malaya
|
December 9, 1941
|
Cuba
|
December 9, 1941
|
China
|
December 16, 1941
|
Czechoslovakia
|
December 16, 1941
|
Sarawak
|
December 16, 1941
|
North Borneo
|
December 16, 1941
|
Brunei
|
May 5, 1942
|
Northern Rhodesia
|
May 5, 1942
|
Southern Rhodesia
|
May 5, 1942
|
Tanganyika
|
May 5, 1942
|
Belgian Congo
|
May 22, 1942
|
Mexico
|
June 13, 1942
|
Iroquois Confederacy
|
August 22, 1942
|
Brazil
|
December 14, 1942
|
Ethiopia
|
January 17, 1943
|
Iraq
|
January 20, 1943
|
Chile
|
April 7, 1943
|
Bolivia
|
September 9, 1943
|
Iran
|
October 13, 1943
|
Italy
|
November 26, 1943
|
Colombia
|
January 27, 1944
|
Liberia
|
August 25, 1944
|
Romania
|
September 8, 1944
|
Bulgaria
|
September 15, 1944
|
Finland
|
September 21, 1944
|
San Marino
|
December 28, 1944
|
Hungary
|
February 2, 1945
|
Ecuador
|
February 7, 1945
|
Paraguay
|
February 12, 1945
|
Peru
|
February 15, 1945
|
Venezuela
|
February 15, 1945
|
Uruguay
|
February 23, 1945
|
Turkey
|
February 26, 1945
|
Syria
|
February 26, 1945
|
Lebanon
|
February 28, 1945
|
Saudi Arabia
|
March 27, 1945
|
Argentina
|
August 15, 1945
|
Viet Minh
|
|