Original sentence: Following the Mexican-American War, Mexico signed the Treaty of Guadalupe Hidalgo, which gave Mexicans and Californios living in state certain unalienable rights
Edited sentence: However, in the end, the US came out victorious.Mexico signed the Treaty of Guadalupe Hidalgo, which gave Mexicans and Californios living in state certain unalienable rights.The Californios valiantly defended their territories against the Manifest Destiny expansion of the United States westward during the Mexican–American War