How did the Mexican American war lead to the civil war

-Brought more states and territories into the US, many Northerners did not want slavery expanded into this new land.

-Broke the free/slave states balance in the government

-Showed that both sides were willing to fight and die to protect their way of life.

-Trained many of the leaders on both sides

-The US moved a lot of guns, ammunition, cannons, and soldiers into Texas to guard against any possible Mexican attempt to get the territory back. The South will take control of this stockpile of weapons and use it to start the war.

-Many of he soldiers and officers in Texas were Southerners and were well equipped to fight

Territories obtained in the Mexican American War of 1848 caused further sectional strife over the expansion of slavery in the ante bellum period. ... The ideological seeds of the American Civil War, in turn, were sown during that conflict.

Explanation:

the war was the westward expansion of the United States. All through the 19th century Americans believed it was their right to expand westward. At the time they believed they could conquer the people already living on the land and take it for the United States.

Explanation:

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answer; self_ disclosure;