The statement that is false about the Mexican War was e. It promoted nationalism and brought an end to sectional debates.
There was a support for the war from Americans who believed it was their right to gain more western territory.
The war was not supported by all Americans however because there were debates over Texas and its history of slavery. This means that the war did not put an end to sectionalism in terms of North v. South conflict.
In conclusion, option E is correct.
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