The battle of Mahabharata between Kauravas and Pandavas is no ordinary war. As per Bhagavad Gita the war of Mahabharata was ordained by God to re-establish Dharma (righteousness) against evil forces of adharma (lawlessness) that bared their fangs during Dwapar Yuga.
As detailed in Bhagavad Gita by Lord Krishna a battle like Mahabharata gets necessitated every 3500 to 5000 years when life comes full circle. When the society reaches its lowest ebb, a point of no return a battle like Mahabharata is the only solution to stem the rot in the society.
Lord Krishna advent above 3650 years from now and in present times, mankind awaits advent of Kalki avatar, the annihilator of Kali Yuga, Dark Age. After a lapse of above 3650 years we in present age would witness a mother of all wars, the Mahabharata of present times.
Such would be the fury of this man-made calamity, a full-scale nuclear war that 1200 million people are expected to perish. I anticipate the coming world war 3 between 2022 and 2025. May God bless all!
In a battle, a war meant to cleanse the society of its ills killing of mankind is not the issue, it is just inevitable. Lord Krishna in Bhagavad Gita says to save lives of millions of countrymen and soldiers if a few are eliminated, then no sin is committed.
Kauravas in Dwapar Yuga though closely related to Pandavas were hell-bent upon razing the modesty of entire Pandava clan. No matter how much convincing on part of Lord Krishna, they did not budge. When everything failed a battle of Dharma was the only solution.
When Dharmaraja himself (Lord Krishna, King of Dharma) was with Pandavas, how could Kauravas win the battle!
All the killing in the battle of Mahabharata was inevitable, not in control of one. Not even an avatar like Lord Krishna could convince Kauravas not to indulge in warfare.