Question

What were the causes of World War I?

Answer 1

I will give you one but you will have to figure out the rest.
The mutual defense alliances was a huge cause because if one country was attacked, the other country that its allied with would jump in and defend them. This made it worse because a war between two countries would then turn into six because they want to defend each other.

Answer 2

The assassination of Archduke Franz Ferdinand was the immediate cause of WW1. However, the major cause was the growth of militarism in the nations of Europe.

Answer 3

One of the main reasons was the partition of Africa which increased the discontentment of some countries that didn't get what they wanted.