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)

Western Front

Contalmaison won and held against counter-attacks; British also take parts of Mametz and Trones Woods.

Total prisoners in 10 days fighting 7,500, and 26 field guns.

At Verdun Germans gain footing in Damloup battery and east of Firmin and Chenois Woods.

Eastern Front

Germans receive reinforcements and heavy artillery to defend passage of the Stokhod.

Asiatic and Egyptian Theatres

Russians begin a fresh offensive in Armenia.

General Maude succeeds General Gorringe in command of Tigris column.

Naval and Overseas Operations

A German submarine shells Seaham Harbour.  One man killed.  Three armed trawlers sunk off Scottish coasts, in action with German submarines.