First you must know the meaning of Non-Believers. Its clear that non-believers of god are evil and evil is a destroyer of mankind. so if god says to destroy non-believers in Quran or IN GEETA whats the difference in that. moreover after winning war someone has to take care of women, children and wealth. Quran doesn't say to rape or murder those woman who are left by their non-believer husbands. Quran says give them shelter because they are innocent. GOT IT????