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Before leaving office, John Tyler signs the Congressional resolution to annex Texas.
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President Polk sent John Slidell, a Spanish-speaking ambassador, to offer Mexico $25 million for Texas, California, and New Mexico, but Mexico declined.
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Polk sent Gen Taylor and troops to staion along the Northern bank of the Rio Grande, which was part of the disputed terriotory.
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After Gen. Taylor sends a letter to Congress asking him to ask Congress to declare war, Congress approves $10 million and 50,000 vounteers for the war effort.
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Led by Gen Scott, the US army moved towards the interior of Mexico, creating a collision with the Mexicans at the mountain pass of Cerro Gordo, but the US army was successful and this victory led to even more, culminating in the capture of Mexico City.
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After the Battle of Mexico City, the US captured the city and occupied it.
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Negotiators sign the treaty, which is then sent to Congress in Washington for ratification. It is then sent to the Mexican Congress.