Question

Why were Division of Europe into two power blocks and Sarajevo Crisis regarded as the causes of the World War I?​

Answer 1

Answer:

What was the reason for ww1?

The immediate causes lay in decisions made by statesmen and generals during the July Crisis, which was triggered by the assassination of Archduke Franz Ferdinand of Austria by the Bosnian Serb nationalist Gavrilo Princip, who had been supported by a nationalist organization in Serbia.

Explanation:

Answer 2

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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. ... Thus began the expansion of the war to include all those involved in the mutual defense alliances