On This Day - 27 September 1917
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)
Seven enemy counter-attacks east of Ypres repulsed.
Pola and Olivi Rock (Austrian submarine base) heavily bombed.
Asiatic and Egyptian Theatres
Russians fight Kurds near Oromaru (Van).
Naval and Overseas Operations
Seaplanes raid St. Denis Westrem aerodrome: 15 Gothas hit.
Russian Democratic Congress at Moscow opens.
National War Bonds (5% and 4%), latter free of Income Tax started.
Arrest of Lenin ordered.