Kirigishi (bluffs) were used as basic defense facilities composing an initial mountain castle, but moats and earthen walls were used frequently and stone walls came into wider use. |
城を構成する基本的な防御施設として、初期の山城では切岸(きりぎし)が用いられたが、やがて堀(ほり)・土塁(どるい)が多用され、石垣(いしがき)が多くなった。 |