What was the earliest known civilization

The idea of manifest destiny simply stated it was america's destiny to expand from the atlantic ocean to the pacific. the word "destiny" implies an idea that it was within our rights as a nation to expand. in a paragraph of 125+ words, explain what could be wrong with that idea.

In their competition for power nations raced to

Who believed that the best economic system was on in which businesses compete to gain profit with minimal or no government control