A List of the Nations Involved in World War One — Allies and Central Powers

German poster encouraging men to fight for the Fatherland

A List of the Nations Involved in World War One — Allies and Central Powers

When you think of World War I, what nations come to mind?  Germany, Great Britain and France? The Great War, however, was a world war and it involved many more nations. (This post is a companion piece to Melina Druga’s WWI Trilogy, Angel of Mercy, Those Left Behind and Adjustment Year, available wherever eBooks are sold.)

The following is the list of nations who participated in the conflict.

The Central Powers:

  • Germany
  • Austria-Hungary
  • Ottoman Empire
  • Hejaz
  • Cameroon
  • German East Africa
  • German South West Africa
  • Bulgaria

The Allies:

Lord Kitchener pointing to the poster's viewer
Although this poster featuring Lord Kitchener has become synonymous with the war, many scholars believe it wasn’t designed until after World War One
  • Great Britain
  • France
  • Canada
  • Newfoundland
  • Russian Empire
  • Serbia
  • Australia
  • New Zealand
  • British India
  • Japanese Empire
  • Belgium
  • British Guiana
  • French Guiana
  • Bahrain
  • Qatar
  • Oman
  • Trucial Oman
  • Hadhramaut
  • French Indochina
  • British North Borneo
  • Brunei
  • Sarawak
  • Egypt
  • Algeria
  • Morocco
  • French West Africa
  • Anglo Egyptian Sudan
  • French Equatorial Africa
  • Nigeria
  • Togo
  • Gold Coast
  • Sierra Leone
  • Gambia
  • French Congo
  • British East Africa
  • Northern and Southern Rhodesia
  • Bechuanaland

    American poster asking the nation to join World War One
    “Civilization calls every man, woman and child”
  • South Africa
  • Madagascar
  • Italy
  • Liberia
  • Italian Somaliland
  • Portugal
  • British Honduras
  • Siam
  • Brazil
  • Romania
  • Greece
  • Tunisia
  • Nicaragua
  • Panama canal zone
  • Guatemala
  • Cuba

Associate Powers:

  • United States
The WWI Trilogy by Melina Druga
The WWI Trilogy by Melina Druga: Angel of Mercy, Those Left Behind and Adjustment Year

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Updated:  19 October 2020
Melina Druga
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Melina Druga is a multi-genre author with a lifelong love of history, books and the English language. She pens historical fiction, chick lit and nonfiction.
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