Chauvinism

Chauvinism is absurdly exaggerated patriotism or militarism; originally a term of ridicule applied to idolatry of Napoleon I (1769-1821), it came from the name of Nicolas Chauvin, a much wounded and decorated veteran who worshipped with blind enthusiasm the military glories and expansionist policies of his defeated hero.

Chauvinism applies to talk and disposition. It thus differs from nationalism which applies to a policy of action.