Word War One was actually caused by a multitude of factor. Although this is the case, the major leading cause of world war one was the murder of Archduke Ferdinand. Another cause for the beginning of world war one is the fact that there was a great deal of competition between Germany and the British military and government. There was also the invasion of Austria by the Balkans which furthered tensions. Alliances began to form to protect one another from invasion and this even further provoked world tensions among leaders.