Wow. Excellent writing. Going to come back to reread this part....

Patriotism is pride in one’s nation, I told Peter, but nationalism is the belief that your nation is better than the others and can play by different rules. Nationalism means that you value life in your country above others and that you believe your culture is superior and should replace others, by violence if necessary. It makes us seek vengeance over one death of ours but feel indifference when another nation suffers hundreds of deaths. It makes us think we are always just and innocent and leads to cultural imperialism and war.