Argonne: Unsuccessful German attacks at Marie-Therese and La Fontaine-aux-Charmes, more Argonne attacks fail on August 13.
Cameroons: 5th Indian Light Infantry (595 soldiers) arrive at Duala.
South Tunisia: French garrison again reinforced, totals to more than 3,000 soldiers, 13 guns and 6 MGs.
Adriatic: Austrian sub U12 sunk (1 survivor) by mine off Venice.
Channel: HM Special Service smack GRE sinks coastal submarine UB4 off Sussex coast.