Austro-Hungarian Archduke Francis Ferdinand was assassinated in Sarajevo by Serbian nationalists. WWI was thought to be begun by the assassination of Francis and his wife. The person who assassinated him was Gavrilo Princip from a small band of nationalistes called ‘Black Hand’. The assassination didn't first start off the war at first but after all the threats by several European countries caused hostility.
Germany invades Luxembourg, Belgium and France beginning WWI.
President Wilson declares U.S neutrality
The first use of poison gas used by Germany at the Ypres
German sub sinks the Lusitania. In April the cunard liner lusitania was preparing to leave the New York harbor. German embassy posted a notice in the paper warning the passengers would be at risk of sinking. Only one person listened to the warning. As the ship was passing Ireland to get to England the German sub U-20 attacked. All 1,198 people on the sub died. 128 were American. Germany claimed that the sub had weapons, which was true, but they were small fire arms and the Lusitania was basically defenseless.
The battle of Verdun results in 1 million French and German casualties.
The battle of the Somme costed 1.25 casualties
President Wilson was reelected president of the U.S
Germany declares all-out submarine warfare
United States declares war on Germany.
First U.S troops arrive in France.
President Wilson proposes peace plan.
Germans launch major offence along the Chemin des Dames.
American defeats Germans at Belleau wood.
American and French troops launch the Meuse-Argonne offensive.
British forces breach Hindenburg line.
The armistice is signed.