Question

The assassination set off a rapid chain of events, as Austria-Hungary immediately blamed the Serbian government for the attack. As large and powerful Russia supported Serbia, Austria asked for assurances that Germany would step in on its side against Russia and its allies, including France and possibly Great Britain. On July 28, Austria-Hungary declared war on Serbia, and the fragile peace between Europe’s great powers collapsed, beginning the devastating conflict now known as the First World War.

Answer 1

True.

Step-by-step explanation:

The assassination of the Archduke Franz Ferdinand of Austria and his wife Sophie by Serb nationalist set of a series of events that resulted in the First world war. However, it should be noted that it is the immediate cause of war but tensions were prevailing for a long time between the imperialist forces which exploded with this event on 28 July 1914 and the war continued for the next five years.