Blockhaus may refer to :
*
blockhouse, a small, isolated fort in the form of a single building to serve as a defensive strong point
*
casemate
A casemate is a fortified gun emplacement or armoured structure from which guns are fired, in a fortification, warship, or armoured fighting vehicle.Webster's New Collegiate Dictionary
When referring to antiquity, the term "casemate wall" ...
, a fortified gun emplacement or armored structure from which guns are fired
* A peak of the
Maiella massif in the Central Apennines in Italy
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