Name the two alliances in Europe at the start of World War 1 and List the members of each alliance?

At the start of World War I, Europe was primarily divided into two alliances: the Allies and the Central Powers. The Allies included France, Russia, and the United Kingdom, later joined by Italy, the United States, and others. The Central Powers consisted of Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria. These alliances played a crucial role in the escalation and dynamics of the war.