Nationalism encouraged people with a shared identity to
declare war on all those who did not share their beliefs.
separate themselves from those who were unlike them.
be open to other people’s traditions, ideas, and beliefs.
convince other people to share their common bonds.
Explanation: National identity is a person's identity or a person's sense of belonging to one state or to one nation. It is the sense of a nation as a cohesive whole, as represented by distinctive traditions, culture, and language.