剧情简介：Ever since humans began to live together in settlements they have felt the need to organize some kind of defense against potentially hostile neighbors. Many of the earliest city states were built as walled towns, and during the medieval era, stone castles were built both as symbols of the defenders' strength and as protection against potential attack. The advent of cannon promp...(展开全部)
作者：Jeremy Black
出版社：Osprey Publishing
ISBN：9781472827630
