Tunnel warfare refers to aspects of warfare relating to tunnels and other underground cavities.
Diorama of defensive tunnels dug during the Second Sino-Japanese War
A Confederate counter mine burrow at Fort Mahone, Petersburg, Virginia
Example of a mine gallery with timber roof support
Explosion of a mine, as seen from a French position in 1916
The mines on the Italian front during the First World War comprised a series of underground explosive charges of varying sizes, secretly planted between 1916 and 1918 by Austro-Hungarian and Italian t
A mine gallery in the ice at Pasubio
The Italian front in 1915–1917, initial Italian conquests shown in blue
Col di Lana and Monte Sief, 1915