What if during the Celtic settlement of Eastern Europe the Celts manage to take and hold Greece turning it into an alternate Galatia. How would it be possible?
Is this really achievable without a fairly early PoD? Even the 270s invasion was meant more as a raid for plunder, not to settle. And if Macedon never conquers an empire, that means that it's more difficult for the Celts (less depleted manpower pool from kleroi settlements and decades of constant war.)
Why? Macedon was eventually able to repel the Celts on it's own in the 270s.Good time would be during the 270's. or alternatively, dont have Macedon conquer an empire, making the Celts task that much easier.