It was his home country. A month after the assassination of the heir to the Austrian throne, Austria-Hungary declared war on Serbia. This action followed a series of ultimatums between not only those two countries but others as well. Austria-Hungary and Germany both had secret agreements to come to each others' aid, and Britain, France, and Russia had similar understandings. These series of secret agreements unnecessarily enlarged the scope and horror of World War I.
The correct option to the question above is option C) <span>Austria-Hungary declared war on Serbia.
</span>Archduke Franz Ferdinand was the heir of the Austrian-Hungarian Empire. He was assassinated by a Serbian named Princip Sarajevo in 1914. This event sparked a series of actions that led to the beginning of WWI.
Gavrilo Principe was the assassinator of Arch-duke Franz Ferdinand, member of the Serbian group the Black Hand. Black Hand was a Serbian nationalist/terrorist group responsible for the assassination of Austrian Archduke Franz Ferdinand which resulted in the start of World War I.<span>
<span> <span><span>Allies:Delian League (with Athens clearly the most powerful); Athens taxed and protected other city-states.</span><span>Military strength:<span>Strong navy.</span></span></span></span>
