In 2-3 paragraphs explain how economic, political, religious, and societal beliefs of the period 1800-1860 fueled the expansion of the U. S.?

23. how does specialization among nations encourage interdependence? nations work together to share labor and resources to produce vital goods. nations sign treaties prohibiting taxes on imports. nations produce specific goods and then trade to obtain things they need. nations that are more developed agree to fund development in nations with limited industry.