Which characteristic(s) of ultranationalism is/ are the most important to an
authoritarian system?

defending ones country even when it is committing horrific acts to its own citizens

a punishment or the threat of punishment used to enforce conformity. enforcement of norms or shared rules of conduct that tell people how to act in specific situations. social control. not everyone internalizes all of society's norms, and some people must be motivated by self-fulfillment.