most scholars agree that Magog is Russia as in Russians in general are descendants of Magog

Gen_10:2 The sons of Japheth; Gomer, and Magog, and Madai, and Javan, and Tubal, and Meshech, and Tiras.

but who are the Chinese/Mongolians from? and why aren't they mentioned in prophetic scripture or at the least paid any attention to if they are? in todays world being most likely the end they have become a major player and power.