On This Day - 22 July 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)
Intense artillery activity in Flanders.
Heavy enemy attacks launched on French on the Aisne front. Stubborn resistance.
Germans active on Verdun front.
German aeroplane raid on east coast (13 killed, 26 injured).
Russian retreat in Galicia extending.
Russians penetrate German defences east of Vilna to a depth of two miles, taking 1,000 prisoners; further success jeopardised by indiscipline.
British raid Bulgar trenches on Struma front.
Asiatic and Egyptian Theatres
Successful British raid at Gaza.
M. Kerenski succeeds Prince Lvov as Prime Minister, retaining offices of War and Marine.
Siam declares state of war with Germany and Austria-Hungary.