2-717-082 - The Print Collector/Heritage Images

'Entrance to a Sap along the French Front', First World War, 1915, (c1920). 'The mine subsequently exploded in this sap killed a great number of Germans'. A 'sap' was a covered trench, dug by 'sappers', often experienced civilian miners. These trench were filled with explosives and detonated, followed by an attack on the surprised survivors from the destroyed position. From "The Great World War - A History" Volume III, edited by Frank A Mumby. [The Gresham Publishing Company Ltd, London, c1920]