Mexico, angered over the annexation of Texas, attacked Texas settlers in what was by now a US State. As a result, Polk was able to persuade Congress to declare war. After a decisive victory, the United States gained 500,000 square miles of territory including Pacific regions that are now modern day San Diego and San Francisco.
The Mexican-American War was not unnecessary.
The Mexican War resulted in the Mexican Cession and the Treaty of Guadalupe Hidalgo ended the Mexican War.
The Mexican war bombed fort Sumter, which led to the begging of the Civil War!
I not sure but the Mexican war was prompted by the annexation of Texas. I hope this help!
The Mexican War (1846-48). Many men who were Civil War generals were junior officers in the Mexican War.
The mexican cession cause people to get more land
cause its gay
The Annexation of Texas by the US was a major cause and the result of the war was Mexican Cession and the Treaty of Guadalupe Hidalgo.
The Thornton Affair.
The US annexation of Texas.
increase of sectional tensions. Catalyst of Civil war.
It was the primary cause of the Mexican American War.
Because it was a direct cause of the Mexican war.
cause: more than 10 countries to be at war Effect: U.s. is feared around the world
the Nueces River was the border between Mexico and the United States.
It was a direct cause of the Mexican-American War.
The Southerners who were democrats.