A fight with bombs.
French foot-soldiers throwing back at the enemy bombs which they have captured from them.
During the first three months of 1915, between Four-de-Paris and the valley of the Aire, the French sappers excavated over 3,000 metres of mine galleries and fired 52 mine chambers, using nearly 16,000 lbs of explosives.
Later on, the mine warfare developed considerably in other directions, and mine-chambers charged with more than 130,000 lbs of explosives were fired.
The German pushes towards Four-de-Paris
(October 1914-May 1915).
The enemy wanted to reach the valley of the Biesme across the wood of Grurie and Bolante.
In October, advancing to the sap, the Germans of von Mudra's army corps took Bagatelle and Saint-Hubert. At the end of November the Four-de-Paris—Varennes road was abandoned by the French.