9 September

1914

 * Battle of the Marne (continued). British cross the river in pursuit of the Germans: French carry the Ourcq.
 * Battle of Fere Champenoise.
 * Syrmia: Serbians occupy Dech.
 * Montenegrins invade Bosnia.
 * Turkey: Announcement of abolition of the Capitulations after 1 October.

1915

 * Zeppelin air raid on North Riding, Norfolk and London concludes. Civilian casualties: 24 killed (inc. 6 children) and 92 injured (inc. 10 children). Military casualties: 2 killed and 2 injured.