Western Front
Battle of the Somme: Rawlinson delays next Fourth Army attack to September 23, he and Haig agree that British cavalry should be withdrawn. Fierce German counter-attack almost retakes Bouchavesnes but driven out after desperate fighting. Canadian Corps pull out of line after 6,000 casualties but fighting again on September 26. German counter-offensive against French fails. [Again, probably no more than a ‘raid’, not a determined counter-attack]. From Combles to the river, an attack with six divisions suffered heavy losses.
South of the Ancre, Germans during night attacked New Zealand troops without success.
Captured German pillbox nicknamed the “Gibraltar” at the Somme near Pozieres:
http://imgur.com/RcuXidM* © IWM (Q 1089)
Eastern Front
Brusilov Offensive, Pripet: One source reports: Germans repulsed near Kovel–Rovno railway and along river Stokhod. Another source reports: German and Austro-Hungarian counteroffensive against the Russians at Stokhid leads to the capture of four trenches and 2,500 prisoners.
Dobruja: Mackensen halts in Dobruja: Germans, Bulgars and Turks in retreat, after severe repulse.
Southern Front
Italians advance east of Gorizia, near Santa Caterina, and on the Carso, east of the Vallone.
Macedonia: Serbian troops repel Bulgarian counterattacks in Florina and advance, capturing three more towns.
Naval and Overseas Operations
Batlic: Much abler Vice Admiral A J Nepenin replaces Vasilii Kanin as Russian Baltic Fleet C-in-C, but Supreme War Council forbids intensified submarine offensive.
East Africa: Portuguese troops cross the Rovuma river, separating German from Portuguese East Africa; the Germans, after feeble resistance, abandon their trenches.
British occupy Kisiwere Port.
Political, etc.
France: French Premier Briand: “If peace were made now it would be a peace of war and a menace to future generations.”
Romania: Government requests French Military Mission, as the nation is now facing 38 Central Powers divisions.
Greece: Albanian Government of Essad Pasha set up in Salonika.
Greek Government demands from Germany the return of the 4th Army Corps surrendered at Kavalla and sent to Germany.