World War I: Italy joins the Allies after they declare war on Austria-Hungary.

World War I: British nurse Edith Cavell is executed by a German firing squad for helping Allied soldiers escape from Belgium

Romania declares war against Austria-Hungary, entering World War I as one of the Allied nations.

The Allies reach the Yser Canal at the Battle of Passchendaele.

World War I: The Hindenburg Line is broken by Allied forces. Bulgaria signs an armistice.

The Ottoman Empire signs an armistice with the Allies, ending the First World War in the Middle East.

Austria-Hungary enters into an armistice with the Allies, and the Habsburg-ruled empire dissolves.

World War I: Germany signs an armistice agreement with the Allies in a railroad car outside Compiègne in France. The war officially ends at 11:00 (The eleventh hour of the eleventh day of the eleventh month) and this is annually honoured with a two-minute silence.

Allied troops occupy Constantinople, the capital of the Ottoman Empire.

The Netherlands refuses to surrender ex-Kaiser Wilhelm II of Germany to the Allies.

World War I: Ottoman sultan Mehmed VI's representatives sign the Treaty of Sèvres that divides up the Ottoman Empire between the Allies.