I think the Chinese case is different in that they have never lost their majority status in term of population. Consequently, the invaders were either eventually assimilated into Han Chinese, be driven out or became one of the many minority ethnics in China. Modern China is still populated by more than 90 percent Han Chinese. Considering how many invaders have passed through China, the male DNA of Han Chinese are surprising homogeneous. The majority O3 haplotype is the same as those found in the ancient bones in some archaeological sites.