Patent ID: 7926406

Claim:
An apparatus for constructing protective structures, comprising: a building block, wherein the building block is shaped to interlock with other building blocks in that the building block includes an insertion end at a first end of the building block and a receiving end at a second end of the building block, the insertion end sized to fit within the receiving end so that the insertion end may be inserted within a receiving end of another building block to interlock the building blocks; one or more ballistic panels configured to fit within the building block, wherein each ballistic panel comprises a three-dimensional core that acts as a truss for the ballistic panel, provides structural support for the ballistic panel and approximates an octet truss; and a filler, wherein the filler fills in spaces defined by each three-dimensional core an any empty spaces in the building block, wherein the one or more ballistic panels and the filler are inserted into the building block.