This military ClipArt gallery offers 67 images of fortifications made for military purposes. Fortifications are defined as any structure or device meant to bolster one's own defense while impeding the progress of an opponent, and can be anything from a castle or tower to a wire fence or chevaux de frise.

A plan of the Austrian Traditore with barracks and storage rooms. The traditore is made with concrete and armor.

Austrian Traditore Plan

A plan of the Austrian Traditore with barracks and storage rooms. The traditore is made with concrete…

"Part of Trench, with A, Fascines, and B, Gabions: in fortification, a large basket of wickerwork constructed with stakes and osiers, or green twigs, in a cylindrical form, but without a bottom." -Whitney, 1911

Trench with Fascines and Gabions

"Part of Trench, with A, Fascines, and B, Gabions: in fortification, a large basket of wickerwork constructed…

"Trenches may be classified into fire trenches, cover trenches, and communication trenches, the first named being occupied by the firing line, the second by the supports, and the last by troops passing between the first and second." -Moss, 1914

Trenches

"Trenches may be classified into fire trenches, cover trenches, and communication trenches, the first…

A communication tunnel in Fort Metz connecting to the counterscarp was constructed underground to send orders to the soldiers.

Fort Metz Counterscarp Communication Tunnel

A communication tunnel in Fort Metz connecting to the counterscarp was constructed underground to send…

A Vinea, or Testudo, a small structure framed with wood used to protect soldiers attacking city walls.

Vinea

A Vinea, or Testudo, a small structure framed with wood used to protect soldiers attacking city walls.

"In the high entanglement the stakes average 4 feet from the ground, and the wiring is horizontal and diagonal." — Moss, 1914

High wire entaglement

"In the high entanglement the stakes average 4 feet from the ground, and the wiring is horizontal and…

"An ordinary barbed-wire fence is a considerable obstacle if well swept by fire. It becomes more formidable if a ditch is dug on one or both sides to obstruct the passage of wheels after the fence has been cut." — Moss, 1914

Wire fence

"An ordinary barbed-wire fence is a considerable obstacle if well swept by fire. It becomes more formidable…