To me this underlines especially how the people can be proud of their country and about to defend it fanatically no matter what, because they were educated that way. You have to wonder how they are conditionned from birth and at school about the history of their country, their beliefs, their morals, what you call "culture" overall.
Speaking from what I know (my country which is France), with every government, there are tendencies to change the focus of the history we learn at school (children's school). Some governments try to open historical perspectives to the outside world, some will tend to keep the view from a very French-centric way, as to make the French more patriot or nationalistic.
In the last years some of our presidents (Chirac, Hollande, Macron, made official apologies for human crimes of the past in various wars), and it made cringe a lot of other intellectuals or Historians who grew very proud of their country, with the idea that their country could do no wrong, or that every reason to make those crimes were valuable (and you can imagine the endless arguments in many details of History).
Of course, you have to know your History perfectly and doesn't have to apologize for everything if you couldn't avoid some conflicts, but it is obvious to me that being a patriot and more knowledgeable about your own country than about other parts of the world cannot lead you to a bright path. You'll be unavoidably biased and mistaken. In that regard, the so-called "sovereignty" that is used for every nation highlights what's wrong in this world. A world of people, nations only watching at their door. In the end, what remains sovereign is their belly button.