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A congressional resolution was signed by President Tyler to annex Texas
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President Polk instructs Sidel to go to Mexico to buy New Mexico and California from them
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Taylor's army moves south into disputed territory claimed by both the US and Mexico.
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After Polk recieved Taylor's letter, he asked Congress to declare war on Mexico, which they approved.
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Taylors army invades the city of Monterrey and defeats general Pedro de Ampudia's forces. This helps the US gain more troops for their army
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The US army claimed and occupied Mexico City.
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The Treaty of Guadelupe Hidalgo is signed by negociators and then rushed to Washington for the Senate to ratify it.
