Devotee: I don't know how to exactly word this. It seems like... I didn't quite understand the explanation, but it seems that although the battlefield is arranged for this war, there was almost a test for his principles and for him to renounce his place in the kṣatriya class. This is where I get confused in the Gītā. It seems like this is a very noble thing for him to renounce his place in the caste. I'm not clear here.
Prabhupāda: Renounce what?
Devotee: To renounce his place as a warrior and to go off into the woods and be a mendicant or whatever he wanted to do.
Prabhupāda: Who said?
Devotee: Arjuna.
Prabhupāda: So that is his cowardice. That is being condemned by Kṛṣṇa, that "It is not your business to give up fighting and go away from the warfield and go to the forest for meditation. It is not your business."
Devotee: How did that war differ from other wars?
Prabhupāda: It is... Sometimes knife is pierced in your body by a surgeon, and in another occasion, another man pierces a knife to stab you. Do you think both knife piercing is the same?
Devotee: No.
Prabhupāda: Similarly.
Devotee: But a man charges at you on a horse with a lance or something in a war, this...
Prabhupāda: No, first of all try to understand this, that piercing the knife in the body is not always bad. Similarly, war or fighting is not always bad, provided it is done for right cause. That should be understood. So when the director is Kṛṣṇa, the Supreme Personality of Godhead Himself, is directing, so there is no cause of stopping it. He has His plan, He knows. We cannot judge. So He's the Supreme. So that war is necessary because it is desired by the Supreme Lord. To maintain the laws of the world, as to maintain the laws and order of a state, there is violence department, the police department, the military department. Why? The government can stop it. "Oh, this is unnecessary expenditure." No. That is necessity for maintenance of the state. Similarly, war is sometimes necessary for maintenance of the order of the world. But people have misused. That is a different thing. But here, in this battlefield of Kurukṣetra, there is no question of misuse. Because it is under the direction of the Supreme Personality of Godhead, there is no such question of misusing. War is necessary, but that does not mean it should be misused. There are so many instances. Just like sex life is necessary for generating for progeny. But that is being misused for sense gratification. That is another thing. In Bhagavad-gītā it is said that "sex life in religious principle." Religious principle means, according to Vedic injunction, putra te kriyate bhāryā, putra piṇḍa prayojanam. There is necessity of a bona fide son in the family, and to beget a bona fide son, there is necessity of accepting wife. So acceptance of such wife and sex life in that connection is not abominable. But to keep some friend and enjoy sex life for sense gratification, that is abominable. But the function is the same. Somebody may say, "Oh, this is also sex life, that is also sex life." But there is much difference. Similarly, apparently, a thing may appear to be the same, but it has got great significance. That is to be judged by higher authorities. That higher authority, supreme authority, is there, Kṛṣṇa Himself.