>>>>>>>>>>however, you do not fight this religious war...........there was no religion in Vedic times (when Mahabharata was written). It talks about fighting the unjust. What is just and unjust is subjective and aslo will depned on "time and space".
The sword in the hands of Kshatriya was meant for protection of the weaker section. It was not meant for getting "rewards in an imaginary life here-after"!!!!!!!!!!!!