This was one of the four towers which flanked the circumvallation of the king just named.
They surrounded the unhappy Jews with a wall of circumvallation.
And yet, however decimated and broken, the royalists stuck to the assault until they finally reached the circumvallation.
Willinghegen is a small place one mile outside the circumvallation.
The position and arrangement of their batteries and lines of circumvallation show that the Chinese were skilled in the art of war.
The Barbarians had no need of a circumvallation on the side of Africa, for it was theirs.
He raised by moonlight a circumvallation of trees, earth, and brush-wood, around the governor's outworks.
His artillery was of no use, nor his lines of circumvallation.
Whereupon he invaded the territory of Phlius, and promptly drawing lines of circumvallation, commenced the siege.
He has drawn his lines of circumvallation round me that I may not escape.
circumvallate cir·cum·val·late (sûr'kəm-vāl'āt')
Surrounded by a ridge or wall-like structure.