“自卫的”的英语？

那些拿起武器自卫的人是些政治犯。Those people who took up weapons to defend themselves are political prisoners.无枪炮或缺水的城市在大军围攻时是无法自卫的.A city without guns or water is defenseless before an army.这就是他用来自卫的武器.This is the weapon that he used t...