The impact that led history to global changes can be point-specific - the “butterfly effect” is triggered. Or it may turn out to be akin to hitting a goal with a battering ram - this is how numerous people who fall for the powers that be work. What if the victim is an ordinary person without superpowers? Not a historian. And even without built-in knowledge of the language... Then he has only two options: die or survive. Having chosen the second, he must again decide: simply maintain his physical existence or live with honor, here and now. The main character, having been transported through time and space, makes a choice in favor of the second both times, without even realizing that he is changing history. Including your own country.