Title: In what way did the Mexican-American War lead to the Civil War? - Quora
Headings: In what way did the Mexican-American War lead to the Civil War?
In what way did the Mexican-American War lead to the Civil War?
Anonymous

Content: However slaves were believed to be essential to the economy and thus to the states. Thus many who opposed slavery fought to uphold it. Remember, most Americans at the time had more loyalty to their state than the US itself. The civil war changed this, but at the start of the war, especially in the South, people were state first, nation second. So protecting the economic interests of their state was important. To a lessor extent the war was also about the growing Federalism that was driven by Northern states. The Confederate Constitution made sure to address some of those grievances. The only roles that Mexican American war played in the Civil war was to heat up the argument about what states would be slave or free states and that the Mexican American war was unpopular in the South. It was seen as Federal overreach. War was declared without popular support.