Yup, this has happened over and over again throughout history. More recently with Stalin, with Han Chinese, in the Balkans, etc. But also in Medieval times and

Yup, this has happened over and over again throughout history. More recently with Stalin, with Han Chinese, in the Balkans, etc. But also in Medieval times and many centuries before. E.g when Sweden gained control over Scania (Southern tip of today's Sweden) from Denmark in the 17th century they relocated a lot of native Swedes into that area to pacify the population. (I may need to reference this, I am only remembering school history classes...) All to establish control, though we see it sometimes does quite the opposite. Though I would also think some of it is natural migration. So not always forced, but probably "encouraged". Though always more when borders have changed. Not to combat an internal "culture"/crime problem.