Fortifications by type

thumb|In this seventeenth-century plan of the fortified city of Casale Monferrato the citadel is the large star-shaped structure on the left.

artillery unit size designation

thumb|Police barricades in Buenos Aires, Argentina (2020) Barricade () is any object or structure that creates a barrier or obstacle to control, block passage or force the flow of traffic in the desired direction. Adopted as a military term, a barricade denotes any improvised field fortification, such as on city streets during urban warfare. These may also include crowd control devices—like temporary traffic barricades, pedestrian barricades, and anti-vehicle barriers—all of which have also been used in the course of urban protests, counterinsurgency operations, and military operations on urba

type of earthwork constructed in a military context

type of fortification based on bastions with a star shape

thumb|Ksar Aït Benhaddou, [[Morocco, a UNESCO World Heritage Site since 1987]] Ksar or qṣar (), in plural ksour or qsour (), is a type of fortified village in North Africa, usually found in the regions predominantly or traditionally inhabited by Berbers (Amazigh). The equivalent Berber term used is '''' (singular) or (plural).

thumb|Completed in 1750, Fort Edward (Nova Scotia)|Fort Edward, Nova Scotia in Canada is the oldest remaining military blockhouse in [[North America.]] thumb|upright|Reconstructed European wooden [[keep at Saint-Sylvain-d'Anjou, France, has a strong resemblance to a North American western frontier log blockhouse]]

thumb|A reconstructed crannog near Kenmore, Perth and Kinross, on [[Loch Tay, Scotland]]

fortified air defense towers used by Nazi Germany

thumb|right|Abatisses are used in war to keep the approaching enemy under fire for as long as possible. An abatis, abattis, or abbattis is a field fortification consisting of an obstacle formed of the branches of trees laid in a row, with the sharpened tops directed outwards, towards the enemy. The trees are usually interlaced or tied with wire. Abatis are used alone or in combination with wire entanglements and other obstacles.

thumb|260px|An illustration of a kraal near Bulawayo in the 19th century. thumb|260px|Building an African Kraal (July 1853, X, p.78) thumb|260px|Zulu people|Zulu kraal near [[Umlazi, Natal]] Kraal (also spelled craal or kraul) is an Afrikaans and Dutch word, also used in South African English, for an enclosure for cattle or other livestock, located within a Southern African settlement or village surrounded by a fence of thorn-bush branches, a palisade, mud wall, or other fencing, roughly circular in form. It is similar to a boma in eastern or central Africa.

thumb|300px|Residents and volunteers work to fill sandbags during the Great Flood of 1993|Mississippi and Missouri river floods of 1993. thumb|300px|Members of the Georgia National Guard filling sandbags in preparation for floods.

military defense formation

concrete dug-in guard posts, normally equipped with loopholes through which to fire weapons

wooden fortress, historic Russia

fortification

wall or barrier at national boundaries

small protective fortification, such as an earthwork

generic term for an ancient or medieval fort

thumb|The ringfort at Rathrar in County Roscommon, Ireland thumb|The in County Donegal, Ireland, is one of the more impressive stone-walled ringforts.

building or facility to store and load weapon material for missiles or rockets

outpost maintained by a sovereign state on its border, usually one of a series placed at regular intervals, to watch over and safeguard its border with a neighboring state

Settlement method used by Zionist settlers in Mandatory Palestine

reinforced hangar to house and protect military aircraft from enemy attack

embankment built in the shape of a circle

Slavic fortified settlement

type of castle

characteristic landform in Ethiopia, known for being steep-sided, flat-topped mountain, often the site of villages, wells and their surrounding farmland

defensive stone tower houses found in Tibet

fortification, usually dating from the Iron Age

thumb|Gulyay-gorod reconstruction. thumb|Pulling shields into position.

type of wall separating peoples, administrative units or cultures

fortified base

temporary military encampment to provide artillery fire support to infantry operating in areas beyond the normal range of fire support from their own base camps; FSBs follow a number of plans

thumb|Ricetto at Candelo, [[Province of Biella, Piedmont, Italy]]

thumb|A German concrete pillbox or blockhouse after capture by the Coldstream Guards on the outskirts of Houlthulst Forest, Battle of Poelcappelle, 10 October 1917

type of fortification

The Bulverket is the remnants of a large wooden fortification or bulwark at Lake Tingstäde on the island of Gotland, Sweden. When built, it consisted of a platform with houses surrounded by a double palisade with the entire construction around in diameter.

thumb|Drawing of the Viereckschanze Buchendorf in Germany A Viereckschanze (from German "four-corner-rampart"; plural -en) is a rectangular ditched enclosure that was constructed during the Iron Age in parts of Celtic Western Europe. They are widespread in Germany, parts of northern France and also in some regions of the Iberian Peninsula, most notably in Portugal.

military fortification

building for the storage of gunpowder

West African fortification

fort type