KnowraGadsden PurchaseLinked fromLinked fromThe 12 pages that link to Gadsden Purchase, each with the reason it gives.All 12Broader topic 3Related 7Compared with 2Mexican–American WarRelated: It added territory to the U.S.–Mexico boundary settlement left incomplete after the war.Treaty of Guadalupe HidalgoRelated: It later adjusted the boundary left unsettled by the treaty’s southern line.Mexican CessionCompared with: This later land transfer lay south of the Mexican Cession and was negotiated separately.Rio GrandeRelated: It fixed the southern U.S. boundary west of the river’s course.Alaska PurchaseCompared with: It offers another negotiated U.S. land purchase, made within the continental borderlands.ArizonaRelated: It established much of Arizona’s present southern boundary.United States–Mexico borderBroader topic: It added the final major territorial adjustment to the border’s continental course.United States territorial expansionBroader topic: It completed the contiguous mainland expansion sought for a southern transcontinental railroad route.Apache WarsBroader topic: The purchase expanded U.S. jurisdiction across Apache lands and sharpened frontier disputes.TucsonRelated: The purchase brought Tucson into the United States and helped set the modern border near the city.History of ArizonaRelated: It established Arizona’s present southern boundary and enabled a southern transcontinental rail route.History of New MexicoRelated: It established the present region’s southern boundary and enabled a proposed transcontinental railway route.