Question

Which events of 1917 would cause the Great War to become a true world war?

Answer 1

the assassination of archuduke

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