Western literature considered it to be weak fortress because of the low amount of used concrete and small number of pillboxes, this indicates the common misunderstanding of the design principle of flexible lines.
This demonstrates the common misunderstanding of the design principle of flexible lines. Western literature considered it to be a weak fortification because of the low amount of concrete used and small number of pillboxes.
Western literature considered it to be a weak fortification because of the low amount of concrete used and small number of pillboxes. This demonstrates the common misunderstanding of the design principle of flexible lines.
Western literature considered it to be a weak fortification because of the low amount of concrete used and small number of pillboxes. This demonstrates the common misunderstanding of the design principle of flexible lines.