What would you put as context for MLK jrs speech a time to break silence?

The segments shown below could form a triangle.

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.

What are consistent goals of u. s. foreign policy? equality between men and women education for all children life, liberty, and the pursuit of happiness spread of democracy and capitalism