The problem that developed between the U.S. and Mexico when Texas became the 28th state includes: Disputes for territorial gain Mexicans living in modern Texas at the time Whether or not it would be a Union State or Confederate State (Google the civil war to learn more)
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The problem between the U.S. and Mexico when Texas became the 28th state centered around territorial disputes, particularly concerning the border between Texas and Mexico. Mexico viewed Texas as part of its territory, leading to increased tensions and eventually the outbreak of the Mexican-American War. Cultural concerns regarding the treatment of Mexicans living in Texas further complicated these relations.
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