The Treaty of Guadalupe Hidalgo (Tratado de Guadalupe Hidalgo in Spanish), officially titled the Treaty of Peace, Friendship, Limits and Settlement between the United States of America and the Mexican Republic,[1] is the peace treaty signed on February 2, 1848, in the Villa de Guadalupe Hidalgo (now a neighborhood of Mexico City) between the United States and Mexico that ended the Mexican-American War (1846-1848). The treaty came into force on July 4, 1848.