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It was caused by US Cavalry troops bumping into a large force of encamped Mexican Army soldiers in the area known as the Neuces Strip. Shots were fired and men died in what is known as the Thornton Affair.

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13y ago
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13y ago

After the US annexation of Mexico President Polk ordered the US Army to defend Texas at the Rio Grande border. A clash between US Forces and the Mexican Army became highly likely in the Neuces Strip with two opposing Armies patrolling the same ground, They met, shots were fired and men died. It was called the Thornton Affair and the US Congress declared War.

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Border conflicts and the failure of Mexico to negotiate the sale of Alta California and Nuevo Mexico to the United States.

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Q: What caused the 'Mexican American War'?
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Related questions

The annexation of which state caused the Mexican American War?

Texas.


Why did people refer to the Mexican American War as Polk's war?

He created the conditions that caused the war.


What are some major wars manifest destiny caused?

Mexican American War


What was the outcome of the Mexican American war for the American military?

The Mexican cession was the outcome of the Mexican American war.


What is a sentence with Mexican American war?

The Mexican-American War was not unnecessary.


How did the Mexican-American war affect North Carolina?

It did not affect it directly but the war caused an out come that was great. it affected the entire country


What resulted from the 1845 decision by congress to annex Texas?

The Mexican-American War began


Did the Mexican American War start in 1810?

No, the Mexican American War began in 1846.


What was the caused of the Mexican American war?

The annexation of Texas as a US state in 1846 directly led to the war, but US ambitions toward the Mexican lands in the West were the driving force for the conflict.


What caused the extension of the country's boundaries to the west coast?

The provisions of the Treaty of Guadalupe Hidalgo after the Mexican American War.


What Mexican President fought the US in the Mexican American War?

JFK fought in the Mexican American war


Did the Mexican American War take place in the 1890's?

No the Mexican American War was from 1846 to 1848.