What is the peace means in international society?

What is the peace mean in international society?

Frankly speaking, my first dream was to become a great diplomat.(Now, it changes.)
However, When I was 17 years old, I started to learn world history in high school.
Then, I considered about what is the peace mean in international society.
If you look at your world history textbook, You’ll see that most of the contents is Chinese/European history - so called a powerful country.
How about Africa or Asia?
Africa takes only 5 pages in the whole history book, also Asia (excluding China) takes 3 pages in the each unit.
But it is not the situation in Korea.
Canada or U.S. ‘s world history textbook also give weight to powerful country’s history.
How about UN?
It is just an organization which is consist of strong countries’ interest.
Perhaps everyone knows – a permanent of the UN Security Council have superiority than UN president.
Also, only who have the permission of the UN Security Council, can be a UN president.
Do you really think that UN is the true organization to realize an international peace?
There is one more thing to know. Look at Africa map. The borders in Africa are usually vertical, or horizontal.
Why this happen?
Because of an imperialism, Africa was divided by strong countries only by their interest.
As a result, enemy tribes of Africa are in same country so they fight all days.
And people who have no fault are dying.
Is it right?