Http://www.american-historama.org/1829-1841-jacksonian-era/spoils-system.htm
Answer:
Spain and France supplied financial help during the war and provided a morale boost to the Americans who thought that the prospects for independence were dim
The biggest factors would be food and water.
Southern states wanted new slave territories, while the north wanted to contain the spread of slavery. while western expansion contributed to growing sectional tensions between the north and south from 1800-1820