Question: Is violence justified? Are there situations when Buddhists can and should react violently? How about Buddhists carrying arms?
My answer: I will give you a sad answer. I don’t like to give such answers but I must do it. Yes, sometimes violence and arms can be used and must be used. We are not Buddhas who are beyond harm and live freely in both mind and body or any manifestations they assume for the sake of saving and guiding us. They can endure anything because they are beyond suffering. More than this, they can even make their body manifestations indestructible. Just look at the example of Padmasambhava who could not be burned or killed by any means.
However, we are ordinary beings living in samsara. We identify ourselves with our delusory bodies and our dear ones. Most importantly, we need freedom and liberties to follow and spread the Dharma. We invented states and laws to protect these rights and liberties and in the past many shed their blood to do so. Surely, if Hitler and the Nazis were not stopped violently we could not practice Buddha Dharma freely into our own countries. The insanity of the Nazi regime with the racial motivated killings needed to be stopped. Life in human form is extremely precious and we could not allow and should never allow anybody, be it a single person or a government to destroy it or take its freedoms and advantages. Governments and politicians are nothing else but our employees who were given the mandate of administering the common resources and protect the rights and liberties. These rights and liberties are NOT given by governments but naturally possessed by us since we were born. They are written in the natural way of things and the role of any government is to protect them and assure an environment in which we can live naturally each according to his/her own conscience. However, when a government goes against the people who is supposed to serve and starts disrespecting their rights and liberties then that government breaks the social contract and it deserves to fall either peacefully or violently if they don’t want to go peacefully. This is common sense. You don’t need to be a Buddhist to understand this simple logic. And if you are a Buddhist you should not deny it like you are some kind of detached Buddha in human form. In samsara you need suitable samsaric environments to promote the Dharma. As Shinran said: