Four Russian diplomats will be banned from Greece after evidence revealed Russia was trying to foment opposition to a historic deal between Greece and Macedonia that is likely to pave the way for Macedonia’s Nato membership and so weaken Russian influence in the western Balkans. Russia, involved in a wider struggle for influence with the EU across the region, has already been accused of backing a failed coup in Montenegro in 2016. Russia said it would respond to the Greek expulsions by taking similar steps against Greek diplomats in Moscow. The expulsion of the diplomats, revealed in the Greek media...