Which event contributed to the outbreak of World War 1?

imediate Cause: Assassination of Archduke Franz Ferdinand

Explanation:

The immediate cause of World War I that made the aforementioned items come into play alliances, imperialism, militarism, and nationalism was the assassination of Archduke Franz Ferdinand of Austria-Hungary.

The factors that contributed to the outbreak of WWI were the assassination of Archduke Ferdinand, imperialism, alliances, and nationalism.

Explanation:

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