What was the rival alliance systems between 1872 and 1907?

Between 1872 and 1907, Europe experienced the formation of two major rival alliance systems: the Triple Alliance and the Triple Entente. The Triple Alliance, established in 1882, comprised Germany, Austria-Hungary, and Italy, aiming to counterbalance the influence of France and Russia. In response, the Triple Entente, formed between France, Russia, and Britain by 1907, sought to promote mutual support against the threats posed by the Triple Alliance. These alliances contributed to the tensions that eventually led to World War I.