is it associated with any war?
Yes, during the American Civil War, the Confederate States of America formed the Confederate Territory of Arizona, including in the new territory mainly areas acquired by the Gadsden Purchase.
Gadsden Purchase
In 1861, during the American Civil War, the Confederate States of America formed the Confederate Territory of Arizona, including in the new territory mainly areas acquired by the Gadsden Purchase.
increased u.s. territory in present-day arizona and new mexico This event is called the Gadsden Purchase what is this event? Also known as "The Sale of La Mesilla" - United States acquired a region of present-day southern Arizona and southwestern New Mexico from Mexico by the Treaty of Mesilla - the region is also called Gadsden Purchase.
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Gadsden Purchase [SEP] Civil War
In 1861, during the American Civil War, the Confederate States of America formed the Confederate Territory of Arizona, including in the new territory mainly areas acquired by the Gadsden Purchase. In 1863, using a north-to-south dividing line, the Union created its own Arizona Territory out of the western half of the New Mexico Territory. The new American Arizona Territory also included most of the lands acquired in the Gadsden Purchase. This territory would be admitted into the Union as the State of Arizona on February 14, 1912, the last area of the Lower 48 States to receive statehood.