What factors contributed to the start of world war 1

5 Contributing Factors to WW1. I believe that the factors that led the world to World War 1 were Imperialism, Nationalism, Militarism, Alliances and Assassination, as each played its own role in contributing to the beginning of the Great War.

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role of religion and warfare

Explanation:

religion caused many war and battles in both ancient and modern governments because there are people who don't like people who believe in different religions. this leads to religious persecutions and war