The secret of similarity between Koreans, Chinese and Japanese

The majority of people around the world believe that the atomic bomb is the secret of resemblance between Koreans, Chinese and Japanese, but they are wrong.
What is the reason for the similarity of the Koreans, the Chinese and the Japanese?

The real reason for the similarity of the Chinese, the Koreans, and the Japanese is that these three countries are all from one source, which means a common source. Some of the people of North Asia to the south, specifically to Mongolia, Some of them to China, the Koreas and Japan.

The Mongol races can be divided into three sections:

American Indians in North America.
Mongols of the East Indies.
The real Mughals and the original ones who are in East Asia.

Thus, we can conclude that what we see as my dear brother in China, Japan and Korea are the original Mongols.

What is the reason for their distinctive shape ??
If so, what is the secret or what is the reason for their distinctive form ??

The population of Japan, the two Koreas and China are characterized by slanting eyes and flat noses.

Because they were living in the far north, which is characterized by a very cold weather, and therefore take their body this shape to adapt to the situation and resist the cold, and became the texture of their eyelids thick to protect the eye and small noses in order to protect the lungs from the air is very cold, The air inside the body.