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The US government accepted Texas' request to admit it as a state, so protecting it from Mexico.
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John Slidell is sent to meet with Mexican President José Joaquín de Herrera to attempt to purchase New Mexico and California. Herrera declines the meeting over public pressure and political fears.
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Taylor and a group of soldiers moved into the area of land clamied by both the US and Mexico, raising tensions between the two.
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The US officially declared war on Mexico, with $10,000,000 and 50,000 volunteers reserved for the war effort.
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The U.S. Army surrounded the Mexican Army at Monterrey and negotiated a ceasefire, angering Polk.
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Mexico City surrendered to the U.S. insurgence, essentially ending the Mexican-American War.
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The Treaty of Guadalupe was ratified by the Mexican Congress, officially marking an agreement between both sides of the Mexican-American War that a large portion of Mexican land was to be turned over the the U.S., expanding the continental area to what it is today.