On This Day - 12 September 1916
Theatre definitions: Western Front comprises the Franco-German-Belgian front and any military action in Great Britain, Switzerland, Scandinavia and Holland. Eastern Front comprises the German-Russian, Austro-Russian and Austro-Romanian fronts. Southern Front comprises the Austro-Italian and Balkan (including Bulgaro-Romanian) fronts, and Dardanelles. Asiatic and Egyptian Theatres comprises Egypt, Tripoli, the Sudan, Asia Minor (including Transcaucasia), Arabia, Mesopotamia, Syria, Persia, Afghanistan, Turkestan, China, India, etc. Naval and Overseas Operations comprises operations on the seas (except where carried out in combination with troops on land) and in Colonial and Overseas theatres, America, etc. Political, etc. comprises political and internal events in all countries, including Notes, speeches, diplomatic, financial, economic and domestic matters. Source: Chronology of the War (1914-18, London; copyright expired)
Somme: French take south of Combles to the river, Hill 145, Marrieres Wood, all enemy trench system up to Bapaume-Peronne road, and many prisoners.
Bouchavesnes, and Hill 76, north of Peronne, taken, and part of German 3rd line.
Dobruja: Field Marshall von Mackensen in supreme command of German-Bulgarian forces.
Romanians advance on Kronstadt (Brasso), their right flank joining Russians near Dorna Vatra.
4th Greek Corps of 25,000 men at Kavalla deserts (under Colonel Hatzopoulos) to the Germans. Sent to Germany as "guests".