Kardu, no the R1b in the Caucasus are not full celts. They simply, long ago, received a very minor Celtic R1b people's migration that subsequently, for many generations, mixed in with local haplogroup lineages. I am not saying those men are celts, as their mothers fathers and other family lineages may be from the Caucasus area, its just that at some point in time, a Germanic man migrated to the Caucasus and left his imprint, genetically lollll, on your family. You have some portion of that blood in you, I'm not saying you're a pure Germanic. And for what concerns Italy, for example, people saying Italians/Romans is not as celts as Western Europe they are more 'southern' Europe, look up pictures of francesco totti or claudio marchisio, marco andreolli, daniele de Rossi, or Christian Maggio and Federico balzaretti. These are all 100% pure italian men from different regions of Italy, and probably they all have at least some/majoritarian R1b in their blood, as 50% of Italians do, or one out of every two men. How can you refer to these men, of which you can find many all across Italy from north to Sicily as being "southern European" phenotype. They look more like Swiss Gauls or French/Belgians to me, typical Western European white men just like Irish English or spaniards. But there are others like cesare Prandelli, lorenzo insigne, Bruno conti ( ex-soccer player) and other Italians ( way too lazy to search for these Assyrian types right now) that are found in isolated villages all across Italy that are obviously not of Celtic stock and still to this day, look more like Palestinians or Armenians than legitimate Europeans.