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Published byDennis Carroll Modified over 9 years ago
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{ Mexican-American War
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After Mexico gained their independence, Americans flooded into Texas. Many were southern protestant who owned slaves. Mexico was Catholic and abolished slavery. This upset the Mexican govt. In 1830, Mexico banned further American settlements.
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As Mexico tried to enforce their laws, tensions grew. American settlers and Tejanos wanted more representation in a democratic govt. But in 1833, Santa Anna became the Mexican President. He overturned their constitution and became a dictator.
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S. Austin encouraged Texans to revolt. In 1836, Texas declared independence. Santa Anna responded with force. They surrounded the Alamo and laid siege to it for 12 days. Eventually all defenders of the mission were killed.
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The following year, Sam Houston led an army in a surprise attack shouting “Remember the Alamo”. Santa Anna was captured and forced to sign a treaty recognizing Texan independence.
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Election of 1844 - Polk promised to annex Texas and Oregon. Polk negotiated with Britain to draw the border for Oregon at 49°N. Annexing Texas caused more tension with Mexico.
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Polk offered to buy California, New Mexico and other land in southwest and set the border of Texas at the Rio Grande River. Mexico refused. Polk sent Zachary Taylor into the disputed land to Provoke confrontation.
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Mexico attacked Taylor’s group. Polk claimed Mexico had killed Americans on American soil. Mexico and Northern Americans said that Polk was to blame. American troops were able to capture multiple cities in Mexican territory. Once they captured the capital city of Mexico City, the U.S. won the war.
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After the war, the U.S. negotiated the Treaty of Guadalupe Hidalgo in 1848 that formally ended the Mexican- American War. Mexico ceded a large majority of the southwest. In 1853, the U.S. paid Mexico $10 million for the Gadsden purchase completing Manifest Destiny.
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