What is meant by this sentence regarding ethnic conflicts?
The sentence is:
Nationalism may be one of the factors leading to a confrontation between two or more ethnicities when the goal of the conflict is to establish a political entity between both groups.
I am doing research about ethnic conflicts, and I am a little bit stuck on this sentence. Could anyone explain to me what it means?
This question is in the General Section. Responses must be helpful and on-topic.