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Archduke Francis Ferdinand was killed
Gavrilo Princip assassinated Francis and his wife -
Austria-Hungary declares war on Serbia
Beginning World War I -
Germany invades Luxembourg and Belgium
Germany made plans to besiege France by crossing Luxembourg and Belgium but the two countries refused free passage to the German troops and were invaded. -
France invades Alsace
This was the opening attack of the First World War by the French Army against the German Empire. The battle was part of a French attempt to recover the province of Alsace. -
British forces arrive in France
General John French, commander of the British Expeditionary Force (BEF), arrived in the port of Boulogne with a large number of troops. -
Austria-Hungary invades Russia
Austria-Hungary fights against Russia on the Eastern Front, marking an early conflict in the war. -
Battle of Marne
French army and the British Expeditionary Force against the advancing Germans who had invaded Belgium and northeastern France. -
Allied forces land on the Gallipoli Peninsula (Ottoman Empire)
British, Australian, New Zealand, and French troops want to take the peninsula, this led to a prolonged and bloody campaign. -
German submarine sinks the passenger liner Lusitania
Crossing from New York to Liverpool (England) killing 128 Americans -
German submarine sinks the passenger liner Lusitania
Crossing from New York to Liverpool (England) killing 128 Americans -
Italy declares war on Austria-Hungary
Italy joins the Allies, a new front is created against Austria-Hungary in the Alpine region. -
Germany starts to attack on Verdun.
Germany enormously assaults the city of Verdun, this was one of the longest and bloodiest battles of the war. -
The United States declares war on Germany
The U.S. joins the Allies after a series of provocations, including Germany’s unrestricted submarine warfare. -
American combat forces arrive in France
They land in France, bringing strength to the Allies on the Western Front. -
Russia signs armistice with Germany
After the Russian Revolution, the new Bolshevik government leaves the war, signing an armistice with Germany. -
Fourteen Points required for peace
President Woodrow Wilson presents to Congress his outline of Fourteen Points required for peace -
United States forces are victorious in the Battle of Cantigny
The first independent American operation. -
Ending World War I
Germany signs the Armistice at Compiègne