Events leading up to Germany's Defeat in WWI

The Triple Entente:

France, UK and Russian Empire (USA fought on their side later on, but was never a member).

The Triple Alliance:

Germany, Austria-Hungary and Italy (Italy switched sides in April 1915).

Early 1918:

Germany defeats Russia on Eastern Front, forcing it to sign a humiliating Peace Treaty. Before now, they had been fighting a war on two front, which was extremely difficult, but with the defeat of Russia they…