Two of the MOST important effects of the American victory in the War with Mexico were

Responses
A the acquisition of Texas and Arizona.
B the acquisition of California and New Mexico
C the death of General Santa Anna and the Mexican defeat at the Alamo in Texas.
D the end of guerrilla attacks on Texas settlers and the removal of Mexican settlers there.

1 answer

The two most important effects of the American victory in the War with Mexico were:

B: the acquisition of California and New Mexico.

The war resulted in significant territorial gains for the United States, including California and New Mexico, which were crucial developments in the expansion of the country.