At the end of the fourteen years, the Pānḍava brothers tried to reclaim their kingdom. In this effort they were helped by Śrī Kṛṣṇa, the king of the Yādava clan, who is the eighth divine incarnation of Lord Viṣṇu. However, Duryodhana refused to yield even a needlepoint of land, and as a result, the Great War, the War of Mahābhārat ensued. In this war, various rulers of the entire nation that is modern India aligned with one or the other of these two clans, the Kauravas or the Pānḍavas.
Kṛṣṇa offered to join with either of the two clans. He says, ‘One of you may have Me unarmed. I will not take any part in the battle. The other may have my entire Yādava army.’ When the offer was first made to Duryodhana, he predictably chose the large and well-armed Yādava army, Nārāyaṇī Senā, in preference to the unarmed Kṛṣṇa. Arjuna joyfully and gratefully chose his dearest friend, his life mentor and his Guru, Kṛṣṇa, Nārāyaṇa, to be his unarmed charioteer!
Click Here to read Part 1: Mahābhārat Is the Story of Your Life – Part – 1