no
The assassination started the diplomatic crisis that led to the outbreak of World War I. The Archduke was the heir to the throne of Austria-Hungary; Austria-Hungary blamed Serbians for helping with the assassination. After negotiations and ultimatums failed, Austria-Hungary declared war on Serbia, which set off a chain reaction of alliances that began the World War.
Austria Hungary did not become one nation after World War 1.
There was no Austria-Hungary after WWI it was broken up after the first world war
Austria-Hungary
Austria-Hungary fought in the Battle of Ginghames during World War One. This battle was between Austria-Hungary and Italy.
germany
Austria-Hungary
It was a World War because a man killed the archduke of Austria-Hungary in Sebia. Austria-Hungary declared war on Serbia. Serbia had an alliance with Russia and then Russia joined the war. Russia was in the Triple Entante and pulled Britain and France into the war. Austria-Hungary had alliances with Germany and the Ottoman Empire. They also joined the war. That is why World War I was a world war.
Austria-Hungary.
Austria-Hungary
It was a consquence of the Black Hand gang murdering Arch Franz Ferdinand when he visited Sarajevo in Bosnia - the Austrians blamed in on the Serbs as Bosnia wanted to be inderpendant of Austria-Hungary and part of Serbia and declared war.