China, Korea Dispute Ancient Kingdom:

Koguryo ruled much of Korea and Manchuria, now China, until it vanished from maps 1,300 years ago. It has been dragged into the headlines by a Beijing-backed study that deems the kingdom to be an integral part of China. Koguryo ruled much of Korea and Manchuria, now China, until it vanished from maps 1,300 years ago. It has been dragged into the headlines by a Beijing-backed study that deems the kingdom to be an integral part of China.

Sounds like China is turning into another hegemon to me.