Sapping

Sapping is a term used in siege operations to describe the digging of a covered trench (a "sap" ) to approach a besieged place without danger from the enemy's fire. The purpose of the sap is usually to advance a besieging army's position towards an attacked fortification. It is excavated by specialised military units, whose members are often called sappers.

Sapping

Sapping is a term used in siege operations to describe the digging of a covered trench (a "sap" ) to approach a besieged place without danger from the enemy's fire. The purpose of the sap is usually to advance a besieging army's position towards an attacked fortification. It is excavated by specialised military units, whose members are often called sappers.