Bunkers can be destroyed with powerful explosives, usually directed shaped charge explosives, although the occupants of a fort can be eliminated with flamethrowers.[5] However, certain bunkers are extremely resistant and therefore the only way to destroy one of these features is by using highly specialized and guided munitions, or bombs specially designed to destroy solid concrete, such as so-called "earthquake bombs" or bunker busters, which may become necessary. with a nuclear warhead for those more resistant bunkers.

Bunkers were used massively, especially in World War II, and were also built in the Spanish Civil War, especially along the island coasts, forming defensive barriers that sometimes extended for hundreds of kilometers. This is the case of the so-called "Maginot Line" built by the French government between 1927 and 1936 along the border with Germany and the bunkers built by the Nazis along the French coast. Bunkers are also currently built in Israel in cases of biological and missile attacks.

Once the Second World War began, Swiss territory found itself in the middle as it was surrounded by Germany and Italy, and later completely with the annexation of Austria and the German invasion of France. In this context and, despite the fact that Switzerland was neutral, an invasion was never ruled out. For this reason, during the war years, a large number of bunkers were built throughout Swiss territory, especially on the country's borders and in the Alps.

Bunkers can be destroyed with powerful explosives, usually directed shaped charge explosives, although the occupants of a fort can be eliminated with flamethrowers.[5] However, certain bunkers are extremely resistant and therefore the only way to destroy one of these features is by using highly specialized and guided munitions, or bombs specially designed to destroy solid concrete, such as so-called "earthquake bombs" or bunker busters, which may become necessary. with a nuclear warhead for those more resistant bunkers.

Bunkers were used massively, especially in World War II, and were also built in the Spanish Civil War, especially along the island coasts, forming defensive barriers that sometimes extended for hundreds of kilometers. This is the case of the so-called "Maginot Line" built by the French government between 1927 and 1936 along the border with Germany and the bunkers built by the Nazis along the French coast. Bunkers are also currently built in Israel in cases of biological and missile attacks.

Once the Second World War began, Swiss territory found itself in the middle as it was surrounded by Germany and Italy, and later completely with the annexation of Austria and the German invasion of France. In this context and, despite the fact that Switzerland was neutral, an invasion was never ruled out. For this reason, during the war years, a large number of bunkers were built throughout Swiss territory, especially on the country's borders and in the Alps.