Civil war? What does that mean? Is there any foreign war? Isn't every war fought between men, between brothers?

Civil war? What does that mean? Is there any foreign war? Isn't every war fought between men, between brothers?

内战吗?这是什么意思?有外国战争吗?不是每一场战争都是人与弟兄之间的战争吗?

-- Victor Hugo 维克多雨果