Sea War
Mediterranean: 3 Royal Navy S-class small submarines transferred to Italian Navy.
Baltic: 3 more Royal Navy E-class submarines have reached Reval.
Western Front
Kitchener announces that 11 New Army divisions have been sent to France and BEF now hold additional 17 miles of French front.
Eastern Front
Western Russia: German cavalry occupy Vileika and Krivichi on railway east of Vilna (infantry arrives on September 18, but Russians retake it on September 26-27); 4 squadrons raid to Borisov on river Beresina.
Baltic Provinces: ÂRussian Twelfth Army retreats to river Dvina covered by cavalry rearguard actions.
Air War
Gallipoli: Kemal Pasha (Atatürk) in staff car east of Suvla narrowly escapes injury by RNAS Nieuport (Samson) bombing.
Home fronts
Britain: Munitions Ministry issues profit limitation rules. House of Commons fourth 1915 war credit vote.
Turkey: ÂNational Assembly first reopens.