Bhagavad-Gita in the Life of Krishna: Warfare
The basic idea of the Gita was to convince Arjuna to fight the war and kill his enemies. Krishna tells Arjuna without mincing any words that he has to face his enemies and march ahead. And in the course of this persuasion, he uses various lines of argument (see for example, BG 2.31-33, 11.34). But this is not an empty exhortation. Krishna himself has killed others. He has killed his own people too. He killed his own maternal uncle Kamsa because the latter was not adhering to dharma and was ruling over the kingdom as a tyrant.
