Russian prisoners captured in the fighting near Tarnopol, July 1917. A German guard is searching a Russian soldier in the foreground. Image courtesy Imperial War Museum © IWM (Q 86646).
- French forces on the Western Front counter-attack and regain ground lost north of the Aisne
- Austro-German forces on the Eastern Front occupy Stanislau and Tarnopol, recently evacuated by the retreating Russians
- The Russian Government reinstates the death penalty for mutinous soldiers and deserters
- The Canadian House of Commons passes the Military Service Act on its third reading; conscription will come into effect on 29 August
