What T-A said. Moreover, Finland as a country exists because Czar Alexander I conquered some eastern provinces of Swedish Realm (as a weird fluke of Napoleonic

What T-A said. Moreover, Finland as a country exists because Czar Alexander I conquered some eastern provinces of Swedish Realm (as a weird fluke of Napoleonic wars), and then decided that they would be useful as a buffer zone for defense of St. Petersburg and also decided that it would convenient not to incorporate the government of the conquered area into Russian bureaucracy. Meanwhile (because of another weird fluke of Napoleonic wars), soon after the loss of Finland, one of Napoleon's capable generals (Bernadotte) was given the crown of Sweden. As a Swedish monarch who had no attachments to the lost territory and possessed the strategic acumen to realize how awesome deal it was not to have Finland around, he did not contest the conquest (plus, he could use it as a point in Congress of Vienna to negotiate Norway to be given for Sweden as "reparations"). Why it was such an amazing deal? For several hundred years, area of Finland used to be a battlefield for numerous wars fought between Sweden and Russia. Ever since Napoleon and the establishment of the buffer country called "Finland", Sweden has enjoyed a remarkably long period of uninterrupted peace. During same period of time, Finland's history could be summarized as "Finnish people not being fond of the Russian ideas how to deal with the defense of St. Petersburg". I don't foresee this state of affairs changing anytime soon.