Poland: Ludendorff decides to order retreat, secretly.
Galicia: Austrians begin vain attempts to recross river San against Brusilov’s troops.
North Sea (Flanders coast): Hood’s Royal Navy Flotilla (2 cruisers, 3 monitors, 4 destroyers joined by French ships) begins shelling Germans east of river Yser until October 31, invaluable contribution to the crucial Western Front battle.
Britain: Churchill meets Royal Navy Division survivors from Antwerp. Their PoWs are in Döberitz Camp near Berlin since October 15.