During the First World War, the soldiers envision new methods to weaken the enemy and they soon come to the idea of ​​digging galleries in the enemy lines and then blowing them up with explosives.

The Battle of the Bois de Belleau takes place between June 1 and June 26, 1918, near Château-Thierry. It marks the entry of General `Black Jack' Pershing's American troops into the conflict.

Historians, archaeologists and army officers examine the great confrontations of the 20th century and the narratives around them that shaped the world.

Historians, archaeologists and army officers examine the great confrontations of the 20th century and the narratives around them that shaped the world.

Historians, archaeologists and army officers examine the great confrontations of the 20th century and the narratives around them that shaped the world.

Historians, archaeologists and army officers examine the great confrontations of the 20th century and the narratives around them that shaped the world.