Everyone knows that four empires ended their existence as a result of World War I: the Russian, Austro-Hungarian, Ottoman, and German empires. The 20th century was basically the century of the end of empires and the self-determination of nations. Of the four defeated empires, two were completely gone, one attempted revenge in 1933, but was finally defeated.
And only one did not collapse, but maintained territorial integrity, paradoxically integrating the principle of self-determination of (...)
Russia