- The First Battle of Ypres begins as winter sets in. French and British troops stand firm around the Belgian city of Ypres, preventing the German armies breaking through to the Channel ports of Calais and Dunkirk. The battle continues until 22 November.
- The transfer of the British Imperial Army from the Aisne to Flanders ends
- The first elements of Indian Corps reach the Flanders front
- The Battle of the Vistula River (aka the Battle of Warsaw) ends. Russia defeats Germany and Austria-Hungary.