I cut from a comment of one blog which attract me to see through...
"The difference between patriotism and nationalism is that the patriot is proud of his county for what it does, and the nationalist is proud of his country no matter what it does, the first attitude creates a feeling of responsibility but the second a feeling of blind arrogance that leads to war." - Sydney J. Harris –
Hhmm… I am trying to digest what Sydney J. Harris said…. Then I opened Wikipedia and I found that Sidney J Harris is an American Journalist who became Nixon political opponent.
Nationalism is a belief, creed or political ideology that involves an individual identifying with, or becoming attached to, one's nation. Nationalism involves national identity, by contrast with the related construct of patriotism, which involves the social conditioning and personal behaviors that support a state's decisions and actions (Wikipedia)
Patriotism is, generally speaking, cultural attachment to one's homeland or devotion to one's country, although interpretations of the term vary with context, geography and political ideology. It is a set of concepts closely related to those of nationalism (Wikipedia)
From what I understood, Nationalism is a spirit to defense the whole nation, devoted and loyalty to one COUNTRY (national identity). It is general, big scale and how Sindey J Harris said that nationalism lead the feeling of blind arrogance that leads to war? Arrogant toward who and war against who?
While Patriotism is a spirit to support and defense to one COUNTY. It is smaller in smaller scale and Sydney said the first attitude creates a feeling of responsibility. Yes Responsible toward its county/group only if their deed is right otherwise patriotism would put its county in danger.
From above, I see that patriotism is IN nationalism. Counties are IN country. But how if patriotism appear in one county to against his country ? and yes, if the patriotism right against the country, he would appear as a patriot (hero) but if the patriotism wrong against the country, he would appear as the opponent that could end up in jail.
Nationalism is a defense action of a nation toward foreign attack for example insulting the country and country leader. Persistent to attack and to defense would finally create a war. The result is only two, either nationalism succeeded to kick the attacker *ss or the country lose its dignity. And arrogance is needed in effort of defense to let the attacker know who they are dealing with. When there is no attack, the nationalism would live in peace in their country humbly.
A quotation like what Sydney J Harris said is just an opinion of one man. We should be re-evaluating whether it is correct or not, fit in the situation or not while a proverb is quotation that exist for centuries for instance “If you want to live in peace, you should follow/obey your leader, your bible (rules) and your society” and this proverb has been proven through generation.
Any other opinion about these two terms are most welcome…. Above is just my personal opinion.