The Mexican-American War was a one of the major conflict between the United States and Mexico. The war was fought from April 1846 to February 1848. The event that led to heightened tensions between the North and the South over the issue of slavery in the late 1840s was the Mexican-American war.
The war which was won by the Americans brought about the U.S. gaining more than areas of land of Mexican territory. The war was as result of the annexation of the Republic of Texas by the U.S. in 1845 and from a dispute over whether Texas ended at the Nueces River.
- The war increase sectionalism in the United States by reopening the slavery-extension issue, which brought division to the North and South and that was dormant since the Missouri Compromise.
Conclusively, Abolitionists saw the war as an means by the slave states to extend slavery and strengthen their power with the making of additional slave states out of the Mexican lands that were retrieved.
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