Bunkers
Introduction
A bunker (plural bunkers[1]) —from the German bunker— is a construction made of iron and concrete, which is used in wars to protect against bombing, both from aviation and artillery.
Guys
Contenido
Los búnkeres tienen un uso militar, aunque a veces también civil o mixto.
Trench
This type of bunker is a small roofed concrete structure, partially buried in the ground, which is usually part of a trench system. Such bunkers offer better protection to soldiers than the open trench and also include protection from aerial attacks (grenades, mortar shells "Mortar (weapon)"). They also offer protection from the weather.[2].
The front part of a trench system usually includes machine guns or mortars and forms a dominant field of fire. The bunkers at the rear of the system are often used as command posts, for storage of supplies, and as field hospitals to care for wounded soldiers.
Fort
Those dug into guard posts, which have concrete spaces through which firearms are fired, are known as "forts." In English, they are called pillbox (which literally translated would be "pillbox"), a name that arose due to the similarity of the structure of this bunker with that of these small boxes for carrying medical pills.[3].
Forts are often camouflaged to conceal their location and maximize the element of surprise. They can be part of a trench system, interconnected they form a line of defense with other forts with the objective of covering each other's fire (defense in depth), or they can be placed to protect strategic structures such as bridges and piers.
Many forts were built before World War II in the Czech Republic to prevent the German invasion of Czechoslovakia. None of these were actually used in combat, as there was little resistance to the German Army. The Empire of Japan also made use of pillbox in its fortifications on Iwo Jima.