Allies During WWII 2022

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Roughly twenty-one years after the end of World War I, the second world war began. World War II found many of the same allies of World War I teaming up against the reformed Central Powers, which were renamed the Axis Powers in World War II. As before, Great Britain and France led the allies at the start, this time joined by Poland, a country that did not exist as an independent nation until the end of WWI. Independent nations of the British Empire, such as Canada, Australia, and South Africa, joined the Allies shortly thereafter. Over time, more than twenty Allies would join the cause as the number of countries involved in WWII continued to expand, engulfing even countries that have no military.

The Big Three Allies and the Four Powers of World War II

Three of the most powerful Allies entered the war—or at least the Allied cause—late, but had a massive impact when they did. First of these was Russia, which actually began WWII as one of the Axis Powers, having signed a non-aggression pact with Germany. In fact, Russia had assisted Germany in its initial invasion of Poland in 1939. However, Germany broke the non-aggression pact itself and attacked Russia in 1941, prompting Russia to switch its allegiance to the Allies.

As it had in the first World War, the United States spent the early portion of World War II attempting to distance itself from the affairs of Europe and join the list of countries that remained neutral in WWII. That all changed when the Japanese bombed the U.S. Naval base at Pearl Harbor, Hawaii in December 1941. In response, the United States entered the war in earnest, participating heavily in both the European and Pacific fronts.

China also joined the Allies in December 1941, an important development even though the country had already been at war with Axis power Japan since 1937. The United Kingdom, Russia, and the United States would come to be known as the "Big Three," and also (with China included) as the "Four Powers." They remain military powers today, with three of the largest militaries of any country on Earth, as well as some of the largest nuclear arsenals in the world. Once World War II ended, the Allies would establish the United Nations, an organization that today includes 193 countries and two observer states.

List of Allied Countries in World War II:

Country Date Joined Country Date Joined Country Date Joined
Argentina 27 March 1945 Finland* 15 Sept. 1944 Oman 10 Sept. 1939
Australia 3 Sept. 1939 France 3 Sept. 1939 Panama 7 Dec. 1941
Belgium 10 May 1940 Greece 28 Oct 1940 Paraguay 7 Feb. 1945
Bolivia 7 Apr. 1943 Guatemala 9 Dec. 1941 Peru 12 Feb. 1945
Brazil 22 Aug. 1942 Haiti 8 Dec 1941 Philippines 8 Dec 1941
British India 3 Sept. 1939 Honduras 8 Dec. 1941 Poland 1 Sept. 1939
Bulgaria* 8 Sept. 1944 Iran 9 Sept. 1943 Romania* 25 Aug. 1944
Canada 10 Sept. 1939 Iraq 16 Jan. 1943 Saudi Arabia 1 Mar. 1945
Chile 11 April 1945 Lebanon 27 Feb. 1945 South Africa 6 Sept. 1939
China 9 Dec 1941 Italy* 10 Oct. 1943 South Korea* 10 Dec. 1941
Colombia 26 July 1943 Liberia 27 Jan. 1944 Soviet Union 22 June 1941
Costa Rica 8 Dec. 1941 Luxembourg 10 May 1940 Syria 26 Feb. 1945
Cuba 9 Dec. 1941 Mexico 22 May 1942 Turkey 23 Feb. 1945
Czechoslovakia* 16 Dec. 1941 Mongolia 1 Aug 1945 United Kingdom 3 Sept. 1939
Denmark 8 Apr. 1940 Nepal 4 Sept. 1939 United States 8 Dec. 1941
Dominican Rep. 8 Dec. 1941 Netherlands 10 May 1940 Uruguay 15 Feb. 1945
Ecuador 2 Feb. 1945 New Zealand 3 Sept. 1939 Venezuela 15 Feb. 1945
Egypt 24 Feb. 1945 Nicaragua 8 Dec. 1941 Vietnam (Viet Minh) 7 Dec. 1941
El Salvador 8 Dec. 1941 Norway 8 Apr. 1940 Yugoslavia 6 Apr. 1941
Ethiopia 14 Dec. 1942

* Notes:

  • Bulgaria began the war as an Axis nation.
  • Czechoslovakia's legitimate government declarted its allegiance while in exile, as the country was occupied.
  • Finland fought alongside Germany and against Russia in the Continuation War from 1941-1944 and did not declare war on Germany until 3 March 1945. However, the declaration was made retroactive to 15 September 1944.
  • Italy and Romania began the war as Axis nations.
  • South Korea's government was provisional at the time of its declaration.
  • Vietnam's allegiance was declared by the Viet Minh, a government that was revolutionary at the time.

Allies During WWII 2022

Country 2022 Population
China1,425,887,337
India1,417,173,173
United States338,289,857
Indonesia275,501,339
Pakistan235,824,862
Nigeria218,541,212
Brazil215,313,498
Bangladesh171,186,372
Russia144,713,314
Mexico127,504,125
Japan123,951,692
Ethiopia123,379,924
Philippines115,559,009
Egypt110,990,103
DR Congo99,010,212
Vietnam98,186,856
Iran88,550,570
Turkey85,341,241
Germany83,369,843
Thailand71,697,030
United Kingdom67,508,936
Tanzania65,497,748
France64,626,628
South Africa59,893,885
Italy59,037,474
Myanmar54,179,306
Kenya54,027,487
Colombia51,874,024
South Korea51,815,810
Spain47,558,630
Uganda47,249,585
Sudan46,874,204
Argentina45,510,318
Algeria44,903,225
Iraq44,496,122
Afghanistan41,128,771
Poland39,857,145
Ukraine39,701,739
Canada38,454,327
Morocco37,457,971
Saudi Arabia36,408,820
Angola35,588,987
Uzbekistan34,627,652
Peru34,049,588
Malaysia33,938,221
Yemen33,696,614
Ghana33,475,870
Mozambique32,969,518
Nepal30,547,580
Madagascar29,611,714
Venezuela28,301,696
Ivory Coast28,160,542
Cameroon27,914,536
Niger26,207,977
Australia26,177,413
North Korea26,069,416
Taiwan23,893,394
Burkina Faso22,673,762
Mali22,593,590
Syria22,125,249
Sri Lanka21,832,143
Malawi20,405,317
Zambia20,017,675
Romania19,659,267
Chile19,603,733
Kazakhstan19,397,998
Ecuador18,001,000
Guatemala17,843,908
Chad17,723,315
Somalia17,597,511
Netherlands17,564,014
Senegal17,316,449
Cambodia16,767,842
Zimbabwe16,320,537
Guinea13,859,341
Rwanda13,776,698
Benin13,352,864
Burundi12,889,576
Tunisia12,356,117
Bolivia12,224,110
Belgium11,655,930
Haiti11,584,996
Jordan11,285,869
Dominican Republic11,228,821
Cuba11,212,191
South Sudan10,913,164
Sweden10,549,347
Czech Republic10,493,986
Honduras10,432,860
Greece10,384,971
Azerbaijan10,358,074
Portugal10,270,865
Papua New Guinea10,142,619
Hungary9,967,308
Tajikistan9,952,787
Belarus9,534,954
United Arab Emirates9,441,129
Israel9,038,309
Austria8,939,617
Togo8,848,699
Switzerland8,740,472
Sierra Leone8,605,718
Laos7,529,475
Hong Kong7,488,865
Serbia7,221,365
Nicaragua6,948,392
Libya6,812,341
Bulgaria6,781,953
Paraguay6,780,744
Kyrgyzstan6,630,623
Turkmenistan6,430,770
El Salvador6,336,392
Singapore5,975,689
Republic of the Congo5,970,424
Denmark5,882,261
Slovakia5,643,453
Central African Republic5,579,144
Finland5,540,745
Lebanon5,489,739
Norway5,434,319
Liberia5,302,681
Palestine5,250,072
New Zealand5,185,288
Costa Rica5,180,829
Ireland5,023,109
Mauritania4,736,139
Oman4,576,298
Panama4,408,581
Kuwait4,268,873
Croatia4,030,358
Georgia3,744,385
Eritrea3,684,032
Uruguay3,422,794
Mongolia3,398,366
Moldova3,272,996
Puerto Rico3,252,407
Bosnia And Herzegovina3,233,526
Albania2,842,321
Jamaica2,827,377
Armenia2,780,469
Lithuania2,750,055
Gambia2,705,992
Qatar2,695,122
Botswana2,630,296
Namibia2,567,012
Gabon2,388,992
Lesotho2,305,825
Slovenia2,119,844
Guinea Bissau2,105,566
North Macedonia2,093,599
Latvia1,850,651
Equatorial Guinea1,674,908
Trinidad And Tobago1,531,044
Bahrain1,472,233
Timor Leste1,341,296
Estonia1,326,062
Mauritius1,299,469
Cyprus1,251,488
Eswatini1,201,670
Djibouti1,120,849
Reunion974,052
Fiji929,766
Comoros836,774
Guyana808,726
Bhutan782,455
Solomon Islands724,273
Macau695,168
Luxembourg647,599
Montenegro627,082
Suriname618,040
Cape Verde593,149
Western Sahara575,986
Malta533,286
Maldives523,787
Brunei449,002
Bahamas409,984
Belize405,272
Guadeloupe395,752
Iceland372,899
Martinique367,507
Vanuatu326,740
Mayotte326,101
French Polynesia306,279
French Guiana304,557
New Caledonia289,950
Barbados281,635
Sao Tome And Principe227,380
Samoa222,382
Curacao191,163
Saint Lucia179,857
Guam171,774
Kiribati131,232
Grenada125,438
Micronesia114,164
Jersey110,778
Seychelles107,118
Tonga106,858
Aruba106,445
Saint Vincent And the Grenadines103,948
United States Virgin Islands99,465
Antigua And Barbuda93,763
Isle of Man84,519
Andorra79,824
Dominica72,737
Cayman Islands68,706
Bermuda64,184
Guernsey63,301
Greenland56,466
Faroe Islands53,090
Northern Mariana Islands49,551
Saint Kitts And Nevis47,657
Turks And Caicos Islands45,703
American Samoa44,273
Sint Maarten44,175
Marshall Islands41,569
Liechtenstein39,327
Monaco36,469
San Marino33,660
Gibraltar32,649
Saint Martin31,791
British Virgin Islands31,305
Palau18,055
Cook Islands17,011
Anguilla15,857
Nauru12,668
Wallis And Futuna11,572
Tuvalu11,312
Saint Barthelemy10,967
Saint Pierre And Miquelon5,862
Montserrat4,390
Falkland Islands3,780
Niue1,934
Tokelau1,871
Vatican City510

Allies During WWII 2022

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