Name 3 causes of World War I?

Answer 1

The chief cause (and the most well-known) of World War 1 was the assassination of Franz Ferdinand, Archduke of then Austria-Hungary, the assassination tipped off a domino effect of war declarations.

Austria-Hungary declared war on Serbia (who were deemed responsible for the assassination of Ferdinand, due to the group of assassins being Serbian nationalists), then Russia Declaring war on AH to protect their ally Serbia, Germany then declared war on Russia to protect AH, France then declared war on Germany in support of Russia, then Britain joined the war to protect France.

Another cause of the war was the expanse of the European powers, Germany was a large and incredibly wealthy empire, and there were a lot of tensions between the major powers as they sought more land and wealth. It could be said that war was inevitable, regardless of Ferdinand's assassination.