Two opposing groupings of nations formed throughout the two major conflicts: World War I and World War II, both of which had a global scope and included many countries.
Germany, Turkey, and Austria-Hungary formed the Central Powers (Germany, Turkey, and Austria-Hungary) (France, Russia, and Great Britain).
About 20 years later, the nations participating in World War II did the same thing, once again choosing to support the German-led coalition, now referred to as the Axis Powers.
A significantly smaller number of nations avoided being involved in World War I than in World War II, which engulfed almost all of the world’s population.
In World War I, the Allies and Associated Powers:
Country | Status |
---|---|
Albania | associated |
Andorra | non-combative |
Armenia | associated |
Asir (now part of Saudi Arabia) | associated |
Australia (as part of British Empire) | ally |
Bangladesh (as part of British Empire) | ally |
Belgium | associated |
Bolivia | associated, non-combative |
Brazil | associated |
Canada (as part of British Empire) | ally |
China | associated, non-combative |
Costa Rica | associated, non-combative |
Cuba | associated, non-combative |
Czechoslovakia* (now Czech Republic and Slovakia) | associated |
Ecuador | associated, non-combative |
Finland (as part of Russia) | ally |
France (and colonies) | ally |
Greece | associated |
Guatemala | associated, non-combative |
Haiti | associated, non-combative |
Hejaz/Hedjaz (now part of Saudi Arabia) | associated |
Honduras | associated, non-combative |
India (as part of British Empire) | ally |
Italy (and colonies) | ally |
Japan | ally |
Liberia | associated, non-combative |
Luxembourg* | associated, non-combative |
Montenegro* | associated |
Myanmar (as part of British Empire) | ally |
Nejd and Hasa (now part of Saudi Arabia) | associated |
Nepal (as part of British India) | ally |
New Zealand (as part of British Empire) | ally |
Newfoundland (as part of British Empire) | ally |
Nicaragua | associated, non-combative |
Nigeria (as part of British Empire) | ally |
Oman (as part of British Empire) | ally |
Pakistan (as part of British Empire) | ally |
Panama | associated, non-combative |
Peru | associated, non-combative |
Poland* | ally |
Portugal | associated |
Romania | associated |
Russia | ally |
San Marino* | associated |
Serbia* | associated |
Siam (now Thailand) | associated |
South Africa (as part of British Empire) | ally |
United Kingdom (England, Ireland, and colonies) | ally |
United States | associated |
Uruguay | associated, non-combative |
The Entente Powers was another name for the Allies during World War I. In September 1914, Great Britain, France, and Russia signed the Treaty of London, which formally established the Allies’ alliance for the duration of the war.
The Allies and the Associated Powers, nations that fought with the Allies but did not join the alliance for political reasons, were further classified into two divisions.
Last but not least, the Allies comprised several nations who formally declared war on the Central Powers but did not participate in combat.
Notes:
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- In 1916, the Hejaz region rebelled against Turkish authority and became part of Saudi Arabia in 1932.
- When the Kingdom of Serbs, Croatians, and Slovenes was formed in 1918, it included Bosnia, Herzegovina, Montenegro, Serbia, and Slovenia.
- Poland was not a sovereign state for most of World War I, as it was divided between Russian, German, and Austrian-Hungarian occupying forces. The Eastern Front’s battles were waged there, and the region’s inhabitants suffered immensely as a result. As a result of the Treaty of Versailles, Poland regained its independence.
- Before 1918, Czechoslovakia was a part of Austria and Hungary rather than an independent state.
- Despite being controlled by Germany from 1914 to 1918, Luxembourg maintained neutrality and never declared war on the Axis countries. Late in the war, the nation did, however, informally associate itself with the Allies.
- Italian intervention prompted San Marino to join the Italian military, despite its declaration of neutrality.
Country | 2022 Population |
---|---|
China | 1448471.4000 |
India | 1406631.7760 |
United States | 334805.2690 |
Indonesia | 279134.5050 |
Pakistan | 229488.9940 |
Nigeria | 216746.9340 |
Brazil | 215353.5930 |
Bangladesh | 167885.6890 |
Russia | 145805.9470 |
Mexico | 131562.7720 |
Japan | 125584.8380 |
Ethiopia | 120812.6980 |
Philippines | 112508.9940 |
Egypt | 106156.6920 |
Vietnam | 98953.5410 |
DR Congo | 95240.7920 |
Iran | 86022.8370 |
Turkey | 85561.9760 |
Germany | 83883.5960 |
Thailand | 70078.2030 |
United Kingdom | 68497.9070 |
France | 65584.5180 |
Tanzania | 63298.5500 |
South Africa | 60756.1350 |
Italy | 60262.7700 |
Kenya | 56215.2210 |
Myanmar | 55227.1430 |
Colombia | 51512.7620 |
South Korea | 51329.8990 |
Uganda | 48432.8630 |
Spain | 46719.1420 |
Argentina | 46010.2340 |
Sudan | 45992.0200 |
Algeria | 45350.1480 |
Ukraine | 43192.1220 |
Iraq | 42164.9650 |
Afghanistan | 40754.3880 |
Canada | 38388.4190 |
Morocco | 37772.7560 |
Poland | 37739.7850 |
Saudi Arabia | 35844.9090 |
Angola | 35027.3430 |
Uzbekistan | 34382.0840 |
Peru | 33684.2080 |
Malaysia | 33181.0720 |
Mozambique | 33089.4610 |
Ghana | 32395.4500 |
Yemen | 31154.8670 |
Nepal | 30225.5820 |
Venezuela | 29266.9910 |
Madagascar | 29178.0770 |
Cameroon | 27911.5480 |
Ivory Coast | 27742.2980 |
Niger | 26083.6600 |
Australia | 26068.7920 |
North Korea | 25990.6790 |
Taiwan | 23888.5950 |
Burkina Faso | 22102.8380 |
Sri Lanka | 21575.8420 |
Mali | 21473.7640 |
Malawi | 20180.8390 |
Zambia | 19470.2340 |
Syria | 19364.8090 |
Chile | 19250.1950 |
Kazakhstan | 19205.0430 |
Romania | 19031.3350 |
Guatemala | 18584.0390 |
Ecuador | 18113.3610 |
Senegal | 17653.6710 |
Chad | 17413.5800 |
Netherlands | 17211.4470 |
Cambodia | 17168.6390 |
Somalia | 16841.7950 |
Zimbabwe | 15331.4280 |
Guinea | 13865.6910 |
Rwanda | 13600.4640 |
Benin | 12784.7260 |
Burundi | 12624.8400 |
Tunisia | 12046.6560 |
Bolivia | 11992.6560 |
Haiti | 11680.2830 |
Belgium | 11668.2780 |
South Sudan | 11618.5110 |
Cuba | 11305.6520 |
Dominican Republic | 11056.3700 |
Czech Republic | 10736.7840 |
Greece | 10316.6370 |
Jordan | 10300.8690 |
Azerbaijan | 10300.2050 |
Honduras | 10221.2470 |
Sweden | 10218.9710 |
Portugal | 10140.5700 |
United Arab Emirates | 10081.7850 |
Tajikistan | 9957.4640 |
Hungary | 9606.2590 |
Belarus | 9432.8000 |
Papua New Guinea | 9292.1690 |
Austria | 9066.7100 |
Israel | 8922.8920 |
Switzerland | 8773.6370 |
Togo | 8680.8370 |
Serbia | 8653.0160 |
Sierra Leone | 8306.4360 |
Hong Kong | 7604.2990 |
Laos | 7481.0230 |
Paraguay | 7305.8430 |
Libya | 7040.7450 |
Bulgaria | 6844.5970 |
Nicaragua | 6779.1000 |
Kyrgyzstan | 6728.2710 |
Lebanon | 6684.8490 |
El Salvador | 6550.3890 |
Turkmenistan | 6201.9430 |
Singapore | 5943.5460 |
Denmark | 5834.9500 |
Republic of the Congo | 5797.8050 |
Finland | 5554.9600 |
Norway | 5511.3700 |
Slovakia | 5460.1930 |
Palestine | 5345.5410 |
Oman | 5323.9930 |
Liberia | 5305.1170 |
Costa Rica | 5182.3540 |
Ireland | 5020.1990 |
Central African Republic | 5016.6780 |
Mauritania | 4901.9810 |
New Zealand | 4898.2030 |
Panama | 4446.9640 |
Kuwait | 4380.3260 |
Croatia | 4059.2860 |
Moldova | 4013.1710 |
Georgia | 3968.7380 |
Eritrea | 3662.2440 |
Uruguay | 3496.0160 |
Mongolia | 3378.0780 |
Bosnia and Herzegovina | 3249.3170 |
Jamaica | 2985.0940 |
Qatar | 2979.9150 |
Armenia | 2971.9660 |
Albania | 2866.3740 |
Puerto Rico | 2829.8120 |
Lithuania | 2661.7080 |
Namibia | 2633.8740 |
Gambia | 2558.4820 |
Botswana | 2441.1620 |
Gabon | 2331.5330 |
Lesotho | 2175.6990 |
North Macedonia | 2081.3040 |
Slovenia | 2078.0340 |
Guinea-Bissau | 2063.3670 |
Latvia | 1848.8370 |
Bahrain | 1783.9830 |
Equatorial Guinea | 1496.6620 |
Trinidad and Tobago | 1406.5850 |
Timor-Leste | 1369.4290 |
Estonia | 1321.9100 |
Mauritius | 1274.7270 |
Cyprus | 1223.3870 |
Eswatini | 1184.8170 |
Djibouti | 1016.0970 |
Fiji | 909.4660 |
Reunion | 908.0610 |
Comoros | 907.4190 |
Guyana | 794.0450 |
Bhutan | 787.9410 |
Solomon Islands | 721.1590 |
Macau | 667.4900 |
Luxembourg | 642.3710 |
Montenegro | 627.9500 |
Western Sahara | 626.1610 |
Suriname | 596.8310 |
Cape Verde | 567.6780 |
Maldives | 540.9850 |
Brunei | 445.4310 |
Malta | 444.0330 |
Belize | 412.1900 |
Bahamas | 400.5160 |
Guadeloupe | 399.7940 |
Martinique | 374.0870 |
Iceland | 345.3930 |
Vanuatu | 321.8320 |
French Guiana | 314.1690 |
New Caledonia | 290.9150 |
Barbados | 288.0230 |
Mayotte | 286.2590 |
French Polynesia | 284.1640 |
Sao Tome and Principe | 227.6790 |
Samoa | 202.2390 |
Saint Lucia | 185.1130 |
Guam | 171.5190 |
Curacao | 165.5290 |
Kiribati | 123.4190 |
Micronesia | 117.4890 |
Grenada | 113.4750 |
Saint Vincent and the Grenadines | 111.5510 |
Tonga | 107.7490 |
Aruba | 107.6090 |
United States Virgin Islands | 103.9710 |
Antigua and Barbuda | 99.5090 |
Seychelles | 99.4260 |
Isle of Man | 85.7320 |
Andorra | 77.4630 |
Dominica | 72.3440 |
Cayman Islands | 67.2770 |
Bermuda | 61.9390 |
Marshall Islands | 60.0570 |
Northern Mariana Islands | 58.2690 |
Greenland | 56.9730 |
American Samoa | 55.0300 |
Saint Kitts and Nevis | 53.8710 |
Faroe Islands | 49.2330 |
Sint Maarten | 43.9660 |
Monaco | 39.7830 |
Turks and Caicos Islands | 39.7410 |
Saint Martin | 39.7300 |
Liechtenstein | 38.3870 |
San Marino | 34.0850 |
Gibraltar | 33.7040 |
British Virgin Islands | 30.5960 |
Palau | 18.2330 |
Cook Islands | 17.5710 |
Anguilla | 15.2300 |
Tuvalu | 12.0660 |
Wallis and Futuna | 10.9820 |
Nauru | 10.9030 |
Saint Barthelemy | 9.9450 |
Saint Pierre and Miquelon | 5.7590 |
Montserrat | 4.9650 |
Falkland Islands | 3.5390 |
Niue | 1.6220 |
Tokelau | 1.3780 |
Vatican City | 0.7990 |