The Mines of Ypres
Σ1, Ε1: The story of how a unique British tunneling technique developed for the mud of Flanders was employed to win the strategic ground during the gruesome trench warfare of the Ypres Salient.

Σ1, Ε1: The story of how a unique British tunneling technique developed for the mud of Flanders was employed to win the strategic ground during the gruesome trench warfare of the Ypres Salient.