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Presdent John Tylar signs congressional resolution to annex Texas
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Texas accepts US offer of annexation
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Taylors army marches south toward rio grande, moving into diputed territory claimed by both US and Mexico
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US Congress ask Polk to declare war on Mexico
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battles of palo Alto and Resaca de la Palma Taylors army wins both driving Mexicans back to Rio Grande
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US army takes over Mexico City
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Negotiators sign the Treaty of Guadelupe Hidalgo