简介:The soil excavated from the trench was piled up behind the earth wall to form an earth wall. The earth wall was one foot high. I could faintly see the Ming army flashing behind the earth wall. Under the triangular sun and moon military flags fluttering, there was a high rise every hundred steps or so. The bamboo basket is filled with soil and the branches are used as camouflage, vaguely like a fort.