In fortification

Fortification

Fortifications are military constructions and buildings designed for defence in warfare and military bases. Humans have constructed defensive works for many thousands of years, in a variety of increasingly complex designs...

, caserns, also spelled cazern or caserne, are little rooms, lodgments, or apartments, erected between the rampart

Defensive wall

A defensive wall is a fortification used to protect a city or settlement from potential aggressors. In ancient to modern times, they were used to enclose settlements...

s, and the houses of fortified towns, or even on the ramparts themselves; to serve as lodgings for the soldiers of the garrison, to ease the garrison, in Portugal

Portugal

Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...

 and Brazil

Brazil

Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

 "Quartel" (derived for 4 faces).

There are usually two beds in each casern, for six soldiers to lie, who mount the guard alternately; the third part being always on duty.

See also Barracks

Barracks

Barracks are specialised buildings for permanent military accommodation; the word may apply to separate housing blocks or to complete complexes. Their main object is to separate soldiers from the civilian population and reinforce discipline, training and esprit de corps. They were sometimes called...

.