Kitap 7
1331a
particularly in view of the inventions that have now been made in the direction of precision with missiles and artillery for sieges. To claim not to encompass cities with walls is like desiringPerhaps a word should be added to the Greek giving desiring to make the country easy to invade, and to strip it—. the country to be easy to invade and stripping it of hilly regions, and similarly not surrounding even private dwellings with house-walls on the ground that the inhabitants will be cowardly. Another point moreover that must not be forgotten is that those who have walls round the city can use their cities in both ways, both as walled cities and as open ones, whereas cities not possessing walls cannot be used in both ways. If then this is so, not only must walls be put round a city, but also attention must be paid to them in order that they may be suitable both in regard to the adornment of the city and in respect of military requirements, especially the new devices recently invented. For just as the attackers of a city are concerned to study the means by which they can gain the advantage, so also for the defenders some devices have already been invented and others they must discover and think out; for people do not even start attempting to attack those who are well prepared.
