Did the american revolution accomplish its goal?

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.

This is the belief that a nation must develop and maintain a strong military force in order to pursue and defend its national interests.

Which document did the second continental congress send king george iii to refaffirm colonist allegiance to him but not to parliament