Here, in the Kṛṣṇa's order, because He is Kṛṣṇa, the Supreme Lord, there is no force. That voluntary. He says that, "This is life—you surrender unto Me." But He could force Arjuna to surrender, or anybody, because He is Supreme Lord. But that force He does not apply, because He has given us little independence. Therefore, if He forces, then His gift of independence is misused from His side. We are misusing our that gift of independence, but for that reason, Kṛṣṇa cannot withdraw your independence.
Just like you are independent citizen. You are . . . if somebody misuses that independence, he becomes a criminal, but still, the independence continues. You are criminal. You are punished. Again you are set free. That means you are given again independence. But again if you misuse, then again you are put into prison.