Step into one of the most chaotic and little-known battles of the First World War in 1916 with this episode of The Old Front Line, as we explore the Battle of the St Eloi Craters (March–April 1916).

Fought in the shattered landscape south of Ypres, this battle saw the devastating use of underground mines transform the battlefield into a nightmarish maze of mud-filled craters. We examine how British tunnelling companies detonated massive charges beneath German lines, and how the newly arrived Canadian Corps struggled to hold and understand the ground they had inherited.

At the heart of this episode are powerful first-hand accounts. We hear the experiences of Donald Fraser, whose vivid testimony captures the confusion and brutality of crater fighting, and Harold McGill, medical officer with the 31st Battalion, who provides a harrowing insight into the challenges of treating the wounded in such extreme conditions.

Main Image: Actions of St. Eloi Craters. Troops of the Northumberland Fusiliers, 3rd Division, wearing German helmets and gas masks captured at St. Eloi, 27th March 1916. Image taken by Ernest Brooks (IWM Q494)

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