Causes of World War I

What were the main causes of WWI?
<Tab/>The Great War is known for its great deal of casualties, and also for its complex initiation. There have been numerous arguments about what actually caused the world war, however there has never been a conclusion that everyone accepts. Before 1930, most historians agreed that the first world war was initiated by Germany, and Germany's rapid expansion. After 1930, historians started to look back at events that happened 100 years before the war, that could have initiated it. Also they started to believe that it was because of the figh…