Group A: Brazil, Croatia, Mexico, Cameroon
Brazil vs. Croatia
World War I (Croatia as part of Austria-Hungary)
Brazil vs. Cameroon
World War I (Cameroon as German Kamerun)
Mexico vs. Croatia
World War II (Croatia as the Independent State of Croatia)
Group B: Spain, Netherlands, Chile, Australia
Chile vs. Spain
Chilean War of Independence
Chincha Islands War
Netherlands vs. Spain
Eighty Years' War/Dutch War of Independence
War of the Portuguese Succession
Anglo-Spanish War I
War of the Jülich Succession
Thirty Years' War
Anglo-Spanish War II
War of the Spanish Succession
War of the Quadruple Alliance
War of the Austrian Succession
Group C: Colombia, Greece, Côte d'Ivoire, Japan
Greece vs. Japan
World War II
Colombia vs. Japan
World War II
Group D: Uruguay, Costa Rica, England, Italy
Uruguay vs. Italy
World War II
Costa Rica vs. Italy
World War II
England vs. Italy
World War II
War of the Third Coalition (Italy as the Napoleonic Kingdom of Italy)
War of the Fourth Coalition (Italy as the Napoleonic Kingdom of Italy)
War of the Fifth Coalition (Italy as the Napoleonic Kingdom of Italy)
Group E: Switzerland, Ecuador, France, Honduras
Switzerland vs. France
War of the Seventh Coalition
Group F: Argentina, Bosnia and Herzegovina, Iran, Nigeria
Argentina vs. Bosnia and Herzegovina
World War II (Bosnia and Herzegovina under the Independent State of Croatia)
Group G: Germany, Portugal, Ghana, United States
Portugal vs. Germany
World War I
Ghana vs. Germany
World War II (Ghana as the British Gold Coast)
United States vs. Germany
World War I
World War II
Group H: Belgium, Algeria, Russia, South Korea