Who took primary responsibility for the moral and civic maintenance of the emerging american culture

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 ww1 what was not a new type of weapon used

Whose teachings is christianity based on what do christians believe about this person