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  1. Mexico informed the US that the annexation of Texas would be considered an act of War, but the US annexed it anyway. Mexico did not declare war but it severed the diplomatic ties with the US.
  2. President Polk ordered General Zachary Taylor to proceed with his Army to the Rio Grande River and prepare to defend Texas from invasion. Both Armies were in the contested Nueces strip, met, shots were fired and men died. The US Congress declared war.
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13y ago
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13y ago

Border disputes, the Texas annexation and Mexico's refusal to negotiate the sale of Alta California and Nuevo Mexico which were deemed essential for Manifest Destiny.

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14y ago

1) America wanted the extra land that Texas provided

2) Mexico would not sell Texas to America which angered America

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13y ago

The US Annexation of Texas and the Thornton Affair.

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The US annexation of Texas and the Thornton Affair.

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10y ago

my dick

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Q: Explain the two main causes of the US's war with Mexico?
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