How Did Alliances Cause Ww1

Alliances was another main cause of the first world war. Alliances were partnerships between countries. For example if a country was in need of help, than whoever was allied with them, would have to help the country if they requested it. Alliances were made all over the world between countries. In 1879 the Dual Alliance came to place, it was an alliance between Germany and Austria-Hungary. These two countries made the alliance to protect themselves from Russia. These nations would support each other in military in case of an Russian attack. At the beginning of the Great War, Italy was allied with Austria and Germany. These two countries got Italy to allied because they didn't want Italy to join for the opposite side. This was the Triple Alliance,