n.圍攻者；圍攻軍
Sieges that aimed at isolating and reducing fortified places became the dominant instrument for prosecuting the war and protective fortifications were vital, for both the besieged as well as the besieger. 對于攻城戰(zhàn)的雙方來講，以孤立并消耗筑壘地域為目的的攻城戰(zhàn)成為戰(zhàn)爭的決定性手段、同時保護筑壘地域的防御工事也生死攸關。
