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texas is admitted into the union
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polk sends Sidel to buy land
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the U.S. march towrds the rio grand onto disputed territoy claimed by both U.S. and mexico
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polk asks congress to declare war with mexico
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battle of mexico city. soilders try to hold the castle of Capultepec for 14 hours
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U.S. army captures Mexico city
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the treaty called for mexico to give to cede 55% of its territory
