The video is pretty clearly made by some nut who wants you to think that Korea would not exist if not for China and Japan. Actually Korean and Chinese are similar, as are all Mongol descendents. Japanese influenced Korea in some positive ways, even though they were very ruthless and harsh when they ruled Korea for over 30 years, not even allowing Koreans to speak the Korean language or fly their Flag. It was a terrible time for the people. Even today, there are bad feelings left in older people who remember the brutality and enslavement by the Japanese.
The amateur video is not a particularly accurate depiction of history, and a waste of time to watch.

If the guy who really know our history, never made like this.
Of course, there's a bit true in this video, almost not true.
For example, our foods is only our traditional food. It is not Japanese+ chinese. Our foods are different with Japan and China.
American who came to my company, he very very liked 'Korean barbecue'.
It is only our food.

And blelow is Korea's map of A.D. 375 ~ 413.
The King's name is Gwang-ge-to and it's means that have very wide land.
His monument is China now and recorded like this on that,
'This area is Korea land !'









At that time, Korea is a Poweful country in Aisa.
The chinese King must bow his head to us.
Hey u guy ! Don't forget that.
We have we ourselves culture.