Vaiṣṇava by naturally, by nature, is not violent. But if it requires, if Kṛṣṇa directs that "You must fight," they fight. That is Vaiṣṇava. When Arjuna declined to fight, and then Kṛṣṇa had to instruct him about the whole instruction of Bhagavad-gītā just to induce him to fight. And at last, Arjuna was asked by Kṛṣṇa, "Now what is your decision? I have told you everything. What do you decide? Whatever you decide, now you do. I have finished My instruction." He said, "Yes, I shall fight." Kariṣye vacanaṁ tava, naṣṭo mohaḥ (BG 18.73). "I was illusioned. Now it is my duty. Because You are ordering and I have heard You very patiently, so it is my duty to fight." Kariṣye vacanaṁ tava. This very word is there. "I shall act as You advise." This is the result of studying Bhagavad-gītā. You read Bhagavad-gītā, and when you agree to act by the instruction of Kṛṣṇa, then your Bhagavad-gītā reading is success. Otherwise, if you act differently, then you may read Bhagavad-gītā for many thousands of years, there is no benefit.
So Kṛṣṇa says in the Bhagavad-gītā that aśocyān anvaśocan. In the beginning Arjuna was arguing with Kṛṣṇa to support his decision that he would not fight. But he could not convince Kṛṣṇa very nicely. That he understood, that "Although I am speaking so many things, Kṛṣṇa is not changing. He is fixed up." Then he surrendered himself: "My dear Kṛṣṇa, we are now talking as friends. No, we shall talk now as master and disciple. You . . . I accept You as my master." Śiṣyas te 'haṁ śādhi māṁ prapannam (BG 2.7). He accepted Him as the master, and he became disciple to understand Bhagavad-gītā. This is the way. If you have got your own opinion, you will never understand Bhagavad-gītā