Respuesta :
Answer:
The alliance system caused the World War I to escalate from a regional conflict into a global war. Two major alliances existed in Europe prior to World War I. The Triple Alliance included Germany, Austria-Hungary, and Italy, while the Triple Entente included the Soviet Union, Britain, and France.
Explanation:
that's it.
Yes, alliances caused the war to become more serious. If it weren’t for alliances, the war would have just been between Serbia and Austria-Hungary.
