Serbians Assassinated heir to the throne Archduke Franz Ferdinand to help stop Austria-Hungary rule.
After being backed up by germany, Austria-Hungary declares war on Serbia.
The French and British drove back Germany from France.
After Germany sunk some of their ships, the U.S abandoned neutrality and joined the Allied Powers.
The Russians signed an armistice with the central Powers after the Russian Revolution
German troops attacked the French. They were joined by 85,000 Americans and some british forces and pushed Germany back, leading to the end of the war.
The Central Powers signed an armistice, ending WWI