Let's do Italy. It's easy.
You see a lot of Italians with Asiatic or Semitic features.
Send those to North Africa.
The remaining 20% of the population, do an IQ filter (remove sub 100s) and breed them like goats.
This Europeanizes the nation.
For kicks import German, Danish, Swedish, and Norwegian semen -- in that order over successive generations -- and orient that population toward Western Europe.
