I believe you are asking what started World War I and that would be the assassination of the Austria-Hungary leader
no but it was involved in WWI due to the assassination of the Austrian-Hungarian leader.
The assassination of Archduke Franz Ferdinand is widely considered the spark that set WWI into motion.
they all had alliances
The first world war started after the assassination of Duke Franz Ferdinand.
a royal assassination. Archduke Ferdinand, from Bosnia, was assanated by Gavrillo Princeps, who was the leader of the Black Hand. When Europe heard about his death they wanted WAR.
The assassination of Archduke Franz Ferdinand caused World War I. This took place in 1914.
World War One started with the assassination of Archduke Ferdinand.
The assassination of Archduke Franz Ferdinand of Austria, which led to the outbreak of World War I ----
APEX: his assassination led to a civil war that ended the Roman Republic
it was the assassination of Arch Duke Ferdinand
it ws the assassination of Archduke Franz Ferdinand