How did imperialism help lead to World War I

Imperialism was a cause because building an empire needs manpower such as an army and a navy to conquer and keep the land that they colonised.

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The expansion of European nations as empires (also known as imperialism) can be seen as a key cause of World War I, because as countries like Britain and France expanded their empires, it resulted in increased tensions among European countries.

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religion was the center of there society they practiced human sacrifices and which they believed kept there god strong and that he would keep bad guys away hope this