Western Front
Battle of the Somme: British capture strongly fortified Destremont Farm. Colonel H Elles, aged 36, appointed to command British tank force. Haig orders offensive for October 12.
Eastern Front
Transylvania – Battle of Praid–Sovata (until October 3): Second Army launches last Rumanian offensive.
Air War
Britain: RFC losses 1,195 aircraft since June 12; 1725 gained. RFC personnel losses 415 (all causes) since June 12.