What are the 3 main causes for world war 1?

Answer 1

The major cause of the Great War was the assassination of Archduke Franz Ferdinand of the Austro-Hungarian Empire in June, 1914, by Gavrilo Princip, a Serbian nationalist. The underlying causes of WWI were nationalism, a form of extreme patriotism and the desire to have independence among the Balkan territories; Imperialism, the desire to take over or gain control of other areas in the world; militarism, the arms race between the major powers; and the Alliance System that was military and defensive which drew all the major powers into the conflict because of their treaties with each other.

Answer 2

There are four causes of WORLD WAR 1:

1) Imperalism.

2) Nationalism.

3) secret alliances.

4) Militrism.

Answer 3

There's actually four. Militarism, alliances, imperialism and nationalism.