The UN was started in 1945, just after World War II.
It was the assasination of archduke franz Ferdinand that directly started world war 1
It was Germany's invasion of Poland that began World War II.
World War One started.
Germany invaded Poland
The assassination of Franz Ferdinand
The assassination of Archduke Ferdinand
Many events led to world war1 but the main event that started the war was when archduke Franz Ferdinand of austria-Hungary was assassinated by a serbian terrorist Many events led to world war1 but the main event that started the war was when archduke Franz Ferdinand of austria-Hungary was assassinated by a serbian terrorist
The assassination of Arch Duke Franz Ferdinand.
the invasion of poland 1st september 1939
The War started when Adolf Hitler's Nazis Germany invaded Poland.
When Franz Ferdinand was assassinated, a bunch of treaties required everyone to go to war.