TWO SIDES IN WORLD WAR I
The two sides, were the Central powers consisting of Germany, Austria-Hungary, Ottoman empire, and Bulgaria and the Allied powers consisting of the US, Britain, France, and Russia.
MAJOR BATTLES
The major battles included Gallipoli, Jutland, Battle of Verdun, Battle of the Somme, Brusilov Offensive, Third Ypres Campaign, German Spring Offensives
EUROPE AFTER WORLD WAR I
Many burdens were placed on Germany and Austria-Hungary that led to the Great Depression and the Ottoman Empire fell.