World War VI

Alliance of the Allied Entente Nations (AAEN)

 * Argentina (Argentine Republic)
 * Australia (Commonwealth of Australia)
 * Belgium (Kingdom of Belgium)
 * Bolivia (Plurinational State of Bolivia)
 * Brazil (Empire of Brazil)
 * Canada (Commonwealth of Canada)
 * Chile (Republic of Chile)
 * China (Qing Dynasty)
 * Colombia (Republic of Colombia)
 * Denmark (Kingdom of Denmark)
 * Finland (Grand Duchy of Finland) (after the Winter War)
 * France (Kingdom of France)
 * Greece (Kingdom of Greece)
 * Iceland (Republic of Iceland) (after the Invasion of Iceland)
 * Israel (State of Israel)
 * Malta (Crown Colony of Malta)
 * Mexico (Mexican Empire)
 * Netherlands (Kingdom of the Netherlands)
 * New Zealand (Commonwealth of New Zealand)
 * Norway (Kingdom of Norway)
 * Paraguay (Republic of Paraguay)
 * Peru (Republic of Peru)
 * Poland-Lithuania (Polish-Lithuanian Commonwealth)
 * Portugal (Kingdom of Portugal) (before the Iberian War)
 * Russia (Empire of Soviet Socialist Republics)
 * South Africa (Union of South Africa)
 * Suriname (Republic of Suriname)
 * Sweden (Kingdom of Sweden)
 * Two Sicilies (Kingdom of the Two Sicilies)
 * Ukraine (Republic of Ukraine)
 * United Kingdom (United Kingdom of Great Britain & Ireland)
 * United States (United States of America)
 * Uruguay (Oriental Republic of Uruguay
 * Venezuela (Bolivarian Republic of Venezuela)
 * Yugoslavia (Kingdom of Yugoslavia)

Central Axis League (CAL)

 * Austria-Hungary (Austro-Hungarian Empire)
 * Confederate States (Confederate States of America)
 * Estonia (Republic of Estonia)
 * Finland (Republic of Finland) (before the Winter War)
 * Germany (German Empire)
 * Iceland (Kingdom of Iceland) (after the Invasion of Iceland)
 * Italy (Kingdom of Italy)
 * Japan (Empire of Japan)
 * Latvia (Republic of Latvia)
 * Orange Free State (Orange Free State)
 * Romania (Kingdom of Romania)

Neutral

 * Andorra (Principality of Andorra)
 * Monaco (Principality of Monaco)
 * Portugal (Kingdom of Portugal) (after the Iberian War)
 * San Marino (Most Serene Republic of San Marino)
 * Switzerland (Swiss Confederation)