The Mexican-American War (1846-1848) was a conflict between Mexico and America that followed America's annexation of Texas, which Mexico still considered its territory despite an independent Texan Republic existing since 1836.
Imagine you have two siblings fighting over who gets control over a shared toy car (Texas). One sibling (the US) decides they're taking full ownership without asking or considering what other sibling (Mexico) thinks about it. This leads to a big fight (Mexican-American War).
Treaty of Guadalupe Hidalgo: This treaty ended the Mexican-American War and resulted in Mexico ceding large parts of its territory including California and New Mexico to U.S.
Republic of Texas: The independent nation that existed from 1836 until it was annexed by the U.S. in 1845, sparking the Mexican-American War.
Bear Flag Revolt: A revolt against Mexico by American settlers in California who declared the territory an independent republic.
AP US History - 4.9 The Development of an American Culture
AP US History - 4.14 Causation in Period 4, 1800-1848
AP US History - 5.1 Contextualizing Period 5
AP US History - 5.3 The Mexican–American War
AP US History - 5.7 Election of 1860 and Secession
AP US History - 5.12 Comparison in Period 5, 1844-1877
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.