Question

what is the main cause of outbreak of world war 1​

Answer 1

Answer:

The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. ... Thus began the expansion of the war to include all those involved in the mutual defense alliances

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Answer 2

Explanation:

The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. ... Thus began the expansion of the war to include all those involved in the mutual defense alliances.

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