The 1991 disintegration of the Soviet Union was not widely anticipated. Academic Sovietologists were probably less likely than knowledgeable non-academics to anticipate that the Union was not going to last. One of the small number of people who got it right was public intellectual (and long-time Senator from New York) Daniel Patrick Moynihan. He argued a decade earlier that the Soviet system faced serious economic problems and that ethnic divisions were likely to lead to a collapse of the Union, as they had to earlier colonial empires like the British. Moynihan’s Irish ancestry helped him to appreciate the continuing importance of ethnicity and nationalism in politics. As warfare diminished in importance over the later twentieth century, the earlier Orwellian nightmare of a world divided into a few warring super-states receded, and an older vision of a Europe of nations revived. In 1900, neither Ireland, Poland, the Czech Republic was an independent country; by 2000 they were all running their own affairs – and not because they built unstoppable military machines. However there was a dark side to the return to nationalism. The newly independent nations of Eastern Europe were successful in resolving older border conflicts partly owing to a wave of mass killing and mass expulsions during and after the Second World War that tidied up the ethnic map. In Yugoslavia, where different nationalities were still heavily intermingled, the return to nationalism resulted in a civil war that killed about 130,000 people, and introduced the phrase “ethnic cleansing” to the language. Benedict Anderson, the great theoretician of nations as “imagined communities,” died just four days ago. My own take on the possible relationship between ethnic consciousness and the theory of kin selection is here.