After 4 years of bitter, bloody fighting which killed 8 million people, Germany finally signed the Armistice Treaty which resulted in an Allied Victory.
The Treaty of Versailles set out harsh terms for Germany, leading to resentments that did help to lead to WWII. Germany lost its overseas empire to the victors which, in the Pacific, included Japan seizing its Pacific island holdings. The Austro-Hungarian Empire separated into smaller nations: Austria, Hungary, Czechoslovakia, Yugoslavia, and others. The Ottoman Empire lost its holdings in Arabia, and became a more democratic country called Turkey. Revolution in Russia deposed the Czar and led to years of Civil War, ending in a Soviet state. Even the victorious European countries suffered from a long and arduous recovery which eventually led to the Great Depression. America prospered as the lender nation and sent relief to Europe, enjoying an unprecedented prosperity called The Jazz Age, right up until the Stock Market Crash of 1929.