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President John Tyler signs the acceptance of statehood for Texas, but it does not pass through Congress. He is warned by Mexico that annexing Texas could lead to a war with Mexico.
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Texas is claimed by the U.S, but isn't acknowledged by Mexico.
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The Mexican-American war officially begins as 2,000 Mexican Troops cross the new border to raid Fort Texas.
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The first official battle of the war, the Battle of Palo Alto. The U.S. forces the Mexican forces to retreat.
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The U.S. Congress officially declares war on Mexico.
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The U.S. wins their fourth straight battle, The Battle of Buena Vista. The U.S. is now clearly in control of the war.
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The U.S. wins the final major battle of the war, The Battle of Mexico City. The U.S. did not lose a single major battle.
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The U.S. and Mexico have signed the Treaty of Guadalupe Hidalgo officially ends the Mexican-American War. The U.S. gains the land known as the Mexican Cession land.
