According to Webster's Dictionary:
That comes in various strengths, from rooting for your country in wars and the Olympics to pledging allegiance to the flag to more extreme forms like fascism. Some of these are inclusive - "all of us here are Americans, we belong together", others are more exclusive - "if you disagree with me or have a different culture or subculture or political party, you are not really an American!"nationalism
an ideology that elevates one nation or nationality above all others and that places primary emphasis on promotion of its culture and interests as opposed to those of other nations, nationalities, or supranational groups.
Christians are people who seek first the Kingdom of God. So how does that relate to nationalism?
Is it possible to prioritize the interests of a nation while also seeking first the Kingdom of God? If so, what would that look like?