What are the causes of World War I?

Answer 1

WW1 was caused by a network of alliances that caused countries to go to war along with their allies after Arch Duke Ferdinand was assassinated by a Serbian national and Austria-Hungary invaded Serbia eventually causing the world to go to war.

There were 9 main causes:

- Alliances

- Rivalry

- Nationalism

- Imperialism

- Arms Race

- Assassination

- Alsace lorraine

- Kaiser Wilhelm II

- Crises

All these points lead up to WWII, some were more important than others but it is completely dependent on your opinion. The Assassination of Arch Duke Ferdinand was just the tip over the edge for the beginning of WW1 but i am sure even if that didn't happen something else would have made it happen.

Answer 2

the sinking of the lusitania ship. there were 1,959 people 159 of which were Americans .there were also unauthorized German submarines moving alone the eastern cost, this was the last straw for the politicians.