Some clarification is probably in order regarding 'Gog and Magog' as used in Revelation. Revelation 20:8 does not indicate that there are only two nations that would attack 'the beloved city'. (This is clear from the context of the earlier verses of the chapter, which indicate that all the nations from before Satan is imprisoned continue to exist throughout the thousand years without Satan to mislead them, and they are subsequently misled when he is released.) Nor does it mean that Gog is one 'coalition of nations' and Magog is another 'coalition of nations' that together form a single bigger 'coalition of nations'.
'Gog and Magog' as used in Revelation is an analogy, in the same way that Revelation uses Babylon as an analogy for (ancient) Rome. The whole phrase is used to represent all of the nations, but 'Gog' and 'Magog' as used in Revelation do not each depict any specific nation or nations.