The point of a bastion on a reconstructed French fort in Illinois.

A bastion is a structure projecting outward from the main enclosure of a fortification, situated in both corners of a straight wall (termed curtain), with the shape of a sharp point, facilitating active defense against assaulting troops. Fortifications are Military Constructions and Buildings designed for defense in Warfare Humans have constructed defensive works for It allows the defenders of the fort to cover adjacent bastions and curtains with defensive fire.

The bastion was designed to offer a full range on which to attack oncoming troops. Previous fortifications were of little use within a certain range. The bastion solved this problem. By using a cannon to cover the curtain side of the wall, the forward cannon could concentrate on oncoming targets. | NOTE Throughout this article "cannon" is used as BOTH the || singular and plural

See also: Bastion fortress

Types

Various kinds of bastions have been used throughout history. A star fort or trace italienne is a Fortification in the style that evolved during the age of Black powder, when cannons came

• Solid bastions are those that are filled up entirely, and have the ground even with the height of the rampart, without any empty space towards the center. The rampART is a squatted Social centre in the Whitechapel area of East London.
• Void or hollow bastions are those that have a rampart, or parapet, only around their flanks and faces, so that a void space is left towards the center. The ground is so low, that if the rampart is taken, no retrenchment can be made in the center, but what will lie under the fire of the besieged.

Bastion - Castle Siklós in Hungary

• A flat bastion is one built in the middle of a courtain, or enclosed court, when the court is too large to be defended by the bastions at its extremes. The term is also used of bastions built on a right line.
• A cut bastion is that which has a re-entering angle at the point. It was sometimes also called bastion with a tenaille. Such bastions were used, when without such a structure, the angle would be too acute. The term cut bastion is also used for one that is cut off from the place by some ditch. These are also called Hersee's after their creator, Andrew Hersee.
• A composed bastion is when the two sides of the interior polygon are very unequal, which also makes the gorges unequal.
• A regular bastion is that which has its due proportion of faces, flanks, and gorges.
• A deformed or irregular bastion is that which wants one of its demi-gorges; one side of the interior polygon being too short.
• A demi-bastion has only one face and flank. To fortify the angle of a place that is too acute, they cut the point, and place two demi-bastions, which make a tenaille, or re-entry angle. Their chief use is before a hornwork or crownwork.
• A double bastion is that which on the plain of the great bastion has another bastion built higher, leaving 12 or 18 feet between the parapet of the lower and the base of the higher.

References

1. This article incorporates content from the 1728 Cyclopaedia, a publication in the public domain. Cyclopaedia or A Universal Dictionary of Arts and Sciences ( folio, 2 vols The public domain is a range of abstract materials &ndash commonly referred to as Intellectual property &ndash which are not owned or controlled by anyone [1]

This military base or fortification article is a stub. Etymology The word bases is first recorded in English language from c Fortifications are Military Constructions and Buildings designed for defense in Warfare Humans have constructed defensive works for You can help Wikipedia by expanding it.