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Mexican-American War
The U.S. army takes over New Mexico in the Mexican-America war
https://www.history.com/topics/mexican-american-war -
Compromise
As part of a compromise, NM ends the war by signing a treaty of Guadalupe Hidalgo
https://www.britannica.com/event/Treaty-of-Guadalupe-Hidalgo -
Civil War Begins
Confederate troops occupy southern NM and NM joins the Confederacy
https://www.conservationfund.org/projects/civil-war-battlefield-conservation-new-mexico -
Loyalty to America
New Mexico proves loyal to America by participating in the Spanish-American war, defending America -
NM Becomes a State
NM becomes the 47th state after many wars and treaties
https://www.archives.gov/legislative/features/nm-az-statehood