First off, is the Louisiana Purchase. Spain gave the Louisiana territory to France, this bothered Jefferson because America needed the Mississippi River and New Orleans for commerce. James Monroe was sent by Jefferson to buy New Orleans and West Florida in 1802. Napoleon made an offer of $15 million and the agreement was signed in 1803. The Louisiana Purchase doubled the size of the United States. Then came the Mexican American War, this war started because of James Polk and the manifest destiny. The Manifest destiny was the divine right to expand the United States territory. This started the war because Polk wanted California and New Mexico. Another cause of the Mexican American War was Texas becoming independent from Mexico.What ended this war was the Treaty of Guadalupe Hidalgo, this treaty made the Rio Grande River the border, Mexico turned over California and New Mexico for $15 million, and the United States assumed $3.25 million of Mexico’s debt.Therefore, the United States expanded its territory
First off, is the Louisiana Purchase. Spain gave the Louisiana territory to France, this bothered Jefferson because America needed the Mississippi River and New Orleans for commerce. James Monroe was sent by Jefferson to buy New Orleans and West Florida in 1802. Napoleon made an offer of $15 million and the agreement was signed in 1803. The Louisiana Purchase doubled the size of the United States. Then came the Mexican American War, this war started because of James Polk and the manifest destiny. The Manifest destiny was the divine right to expand the United States territory. This started the war because Polk wanted California and New Mexico. Another cause of the Mexican American War was Texas becoming independent from Mexico.What ended this war was the Treaty of Guadalupe Hidalgo, this treaty made the Rio Grande River the border, Mexico turned over California and New Mexico for $15 million, and the United States assumed $3.25 million of Mexico’s debt.Therefore, the United States expanded its territory