Question

explain the immediate cause leading to the first world war​

Answer 1

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. In June 1914, a Serbian-nationalist terrorist group called the Black Hand sent groups to assassinate the Archduke.

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Answer 2

Hey man, Here you go the answer

(i) The Sarajevo incident is the immediate cause of the First World War. On 28 June 1914, the Austrian Archduke Francis Ferdinand and his wife were shot dead in Sarajevo, the capital of Bosnia.
(ii) Austria saw the hand of Serbia behind the assassination of the Prince and served Serbia with an ultimatum. Due to the support of Russia, Serbia refused to accept the demands. So Austria declared a war on Serbia.

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