A cavalier is a

fortification A fortification (also called a fort, fortress, fastness, or stronghold) is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from Lati ...

which is built within a larger fortification, and which is higher than the rest of the work. It usually consists of a raised platform within a

fort A fortification (also called a fort, fortress, fastness, or stronghold) is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from La ...

bastion A bastion is a structure projecting outward from the curtain wall of a fortification, most commonly angular in shape and positioned at the corners of the fort. The fully developed bastion consists of two faces and two flanks, with fire from the ...

, so as to be able to fire over the main parapet without interfering with the fire of the latter. Through the use of cavaliers, a greater volume of fire can be obtained, but its greater height also makes it an easier target for a besieger's guns. There are two types of cavaliers: *Common cavalier – a raised gun platform without any additional defensive features *Defensible cavalier – a raised gun platform surrounded by a ditch. If the ditch cuts across the bastion's

terreplein In fortification architecture, a terreplein or terre-plein is the top, platform, or horizontal surface of a rampart, on which cannon are placed,''Webster's International Dictionary of the English Language'', Vol 2, 1895 protected by a parapet. In ...

and is supported by cuts, the cavalier can also be considered as a

retrenchment Retrenchment (, an old form of ''retranchement'', from ''retrancher'', to cut down, cut short) is an act of cutting down or reduction, particularly of public expenditure. Political usage The word is familiar in its most general sense from the mot ...

References

Fortification (architectural elements) {{fort-stub