One common argument against pacifism is the possibility of using violence to prevent further acts of violence (and reduce the "net-sum" of violence). This argument hinges on consequentialism: an otherwise morally objectionable action can be justified if it results in a positive outcome. For example, either violent rebellion, or foreign nations sending in troops to end a dictator's violent oppression may save millions of lives, even if many thousands died in the war. Those pacifists who base their beliefs on deontological grounds would oppose such violent action. Others would oppose organized military responses but support individual and small group self-defense against specific attacks if initiated by the dictator's forces. Pacifists may argue that military action could be justified should it subsequently advance the general cause of peace.
