Devotee: Thirty-one: "Considering your specific duty as a kṣatriya you should know that there is no better engagement for you than fighting on religious principles, and so there is no need for hesitation."
Prabhupāda: So here fighting is a matter of duty. That is the kṣatriya spirit. Fighting is not killing. Because people have no idea what is the soul, therefore they think that stopping war will help us in peaceful condition of the society. There are so many troubles so long this body is there. War is one of the item. Even war is stopped, there is no question that people will live forever. No. That is not the law of nature. Duḥkhālayam aśāśvatam (BG 8.15). This life, the problem is how to stop our contact with this material body That is the problem. Not that these general people, they are thinking, "If war . . . there is no war, then we shall be very happy." How you'll stop your war with māyā? Māyā has declared war with you, or you have declared war with māyā. Daivī hy eṣā guṇamayī mama māyā duratyayā (BG 7.14).
The māyā, the material nature, is enforcing, "Why you are closing this door?" "Oh, because it is very cold outside." Who is forcing? Immediately there will be cold, immediately there will be fog, immediately there will be excessive heat, immediately there may be earthquake. How you can stop it? So they simply think . . . just like innocent child, they are concerned with the immediate problem. But a sane man is concerned with the ultimate problem.
So our ultimate problem is not this war. The ultimate problem is repetition of birth and death. That is ultimate problem, how to stop this. That is the problem. So Kṛṣṇa says that, "This is useless lamentation, that you do not wish to fight. It is a concluded fact that even your grandfather or relatives die, they will continue as soul. You have to execute your duty. You cannot deviate from your duty."