18 September

Home Front

 * Part 57 of The Great War periodical is published. This week's edition covers "The French Advance Towards Lens and the Battle of The Labyrinth."

Western Front

 * The Aisne: Heavy fighting round Noyon and Reims.

Eastern Front

 * Poland: Russians take Sandomierz.

Naval and Overseas Operations

 * South-west Africa: British occupy Lüderitz Bay (which Germans had evacuated militarily on 10 August).

Political

 * Great Britain: Parliament prorogued: King George's speech.
 * Mr. Asquith's Edinburgh speech.