There are many populations like this in these countries in western Europe or eastern Asia. Or in Russia, or other Asian countries. Populations where white and asian have mixed together more than 1,000 years ago, or even many thousands of years ago. They are like 99.999% of one race, but you can still see some phenotype features from hundreds or thousands of years ago. White people who have dark black straight hair and eyes that are similar to Asian people, these are originally asian features that are left from all those years ago. Even the Japanese, Korean, and many Chinese having such light white skin and being taller compared to many other Asians, because I have heard of some mixing between the Japanese and white people many thousands of years ago. But there are many countries where you can see a population of people who have some very small evidence of some mixing that happened an extremely long time ago.