On This Day - 15 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)
Great British advance (third phase) on the Somme, a six-mile front to depth of 2 or 3,000 yards.
Flers, Martinpuich, Courcelette and whole of High Wood taken.
New heavy armoured cars (Tanks) used for first time, north of Pozieres to east of Guillemont.
French capture trenches south of Rancourt, and system of trenches north of Le Priez Farm, south of Somme, east of Deniecourt, etc.
Lower Isonzo: Italians take San Grado, strong entrenchments towards Loquizza, and over 1,800 prisoners.
Naval and Overseas Operations
General Smuts' columns reach south of Uluguru Hills, and join near, and occupy, Kissaki; Van Deventer approaching the Great Ruaha river towards Mahenge (East Africa).
Sudi Bay occupied by British naval forces.