Although a number of things brought about ww1 there was one event that pushed europe over the edge what was it

assassination of Archduke Ferdinand

Archduke Ferdinand of Austria was assasinated by a terrorist named Gavrillo Princip, which is a citizens of Serbia. This create a massive tension between the two countries which lead up to both of them seeking alliances to strengthen their millitary and eventually ended up in the world war I.

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explanation:

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