World War One Diary for Saturday, September 15, 1917:
Flanders: British capture strongpoint north of Inverness Copse. Portuguese repulse attack at Neuve Chapelle.
Aisne: Petain adopts plan for limited attack.
Russia: Kerensky proclaims himself C-in-C with Alexeiev as CoS, all three Front commanders changed.
Isonzo: 4 Austrian attacks across Bainsizza Plateau fail. Sassari Brigade captures Hills 895 and 862 on its eastern edge. General Below and his CoS Krafft visit Archduke Eugene to concert offensive plans.
Germany: Last battlecruiser Graf Spee launched at Danzig by Schichau but never completed despite 1,500 workers’ efforts.