On This Day - 21 January 1918
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)
French raid in Argonne.
British bomb Thionville and Metz district and aerodromes in Belgium.
Germany announces agreement with Ukraine.
Asiatic and Egyptian Theatres
Mesopotamia: British bomb Turkish aerodrome at Kifri, north of Baghdad.
Naval and Overseas Operations
War Office reports further progress in East Africa.
British occupy Mwembe.
H.M.S. "Louvain" torpedoed and sunk in Mediterranean.
Sir E. Carson resigns.
Man-power Bill passes Committee stage.
Austria: Strikes reported at an end.