Goths, (proto) Celts, etc. Almost all the peoples of Europe have moved west from the east in waves through the ancient era (and the prehistory). Only some like the Basques or the Chechens are actually indigineous to their areas for thousands of years.
As for the "brothers" Serbs, seems the Croats remember this bullshit: https://twitter.com/visegrad24/status/1500179892511592453
Goths, (proto) Celts, etc. Almost all the peoples of Europe have moved west from the east in waves through the ancient era. Only some like the Basques or the Chechens are actually indigineous to their areas for thousands of years.
As for the "brothers" Serbs, seems the Croats remember this bullshit: https://twitter.com/visegrad24/status/1500179892511592453