Like it or not, the European Union enlargement machinery has rumbled into life once more, for geopolitical reasons that require no further explanation. The number of 36 member states, at an as yet undetermined point in the future, is often cited: the new entity would include the six Balkan states (Albania, Bosnia & Herzegovina, Kosovo, North Macedonia, Montenegro and Serbia) and three from the eastern zone (Georgia, Moldova and Ukraine). There is no guarantee that all these states will...