No, Buddhism as a religion doesn't, although you must understand that even in Christianity and Islam, the whole notion of "Holy War" is more a smokescreen to hi

No, Buddhism as a religion doesn't, although you must understand that even in Christianity and Islam, the whole notion of "Holy War" is more a smokescreen to hide the much more prosaic underlying causes for war that have always been true throughout history: land, resources, human slave labour, control in general. And it doesn't matter what justification is used for killing, really. One must look at the case from all angles, as the your parent said. However war and killing has never resolved long running conflicts in history. It merely subsides for a while before rearing its head again. We really must put an end to quarrelling based on religion, race, ethnicity, and other puerile differences, or our species is never going to reach its potential on this planet.