Why Did World War I Happen?

In this free resource on World War I, explore the causes and effects of the Great War to understand how the conflict shaped world history.

Causes of the First World War

Long-term Causes of World War I - HISTORY CRUNCH - History Articles, Biographies, Infographics, Resources and More

Causes of World War 1, World War 1 Revision

Origins of World War I - Anzac Portal

The Top 5 Causes of World War I

World War I Begins - Division of Historical and Cultural Affairs - State of Delaware

How did World War II begin?

When Did the Major Powers of World War One Enter the War and Why?

The First World War - Lagan History Zone

World War I - Wikipedia

How did World War I begin? – Mountain View Mirror

World War II: Facts & Info About the Bloodiest War in History

World War One and the Triggers for War

Causes Of WW1: Contributions and Influences of World War One - History