> North Korea, Syria, Democratic Republic of Congo, and the Central African Republic are republics and among the most tyrannous societies. I don't know about e

> North Korea, Syria, Democratic Republic of Congo, and the Central African Republic are republics and among the most tyrannous societies. I don't know about every single country on the list, but at least the one I am somewhat informed about (North Korea) is a republic only in name, as it is pretty much an authoritarian dictatorship state controlled by the military class.