On This Day - 27 May 1915
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 take Les Quatre Bouquetaux (near Souchez).
Severe fighting in Bois-le-Pretre.
Russians take Sieniawa (north-west of Jaroslau) and Kindowary (Shavli district).
Italians occupy Grado and Ala (Trentino).
Naval and Overseas Operations
H.M.S. "Majestic" torpedoed off Gallipoli.
H.M.S. "Princess Irene", auxiiliary ship, blown up in Sheerness harbour.
Admiral Sir H. Jackson appointed First Sea Lord.
Portugal: President Arriaga resigns.