 Rambai muchinyora ndima ino - Zvizhinji zvenzvimbo iyi zvaive nzvimbo yeMexico yeAlta California, nepo nzvimbo yekumaodzanyemba kwakadziva kumabvazuva kweRio Grande yakanga iri chikamu cheSanta Fe de Nuevo México, nzvimbo zhinji uye huwandu hwevanhu hwaive kumabvazuva kweRio Grande panyika yainzi neRepublic of Texas kubvira muna 1835, asi isina kumbobvira yave kudzorwa kana kutombosvika kunze kweTexan Santa Fe Expedition. Mexico yakadzora nzvimbo yakazozivikanwa seMexico Cession, ine kuzvitonga kwakakura kwenzvimbo kwakarongedzwa nekumukira kwakati wandei uye mauto mashoma akatumirwa kubva pakati peMexico, munguva kubva muna 1821 kusvika 22 mushure mekuzvimiririra kubva kuSpainkusvikira muna 1846 apo mauto eU.S. akatora California neNew Mexico pakatanga Hondo yeMexico neAmerica. Muganhu wokuchamhembe we42nd parallel kuchamhembe wakagadzwa neSungano yeAdams-Onís yakasainwa neUnited States neSpain muna 1821 uye yakasimbiswa neMexico muna 1831 muSungano yeMiganhu Mexico-United States. Muganhu wekumabvazuva weMexico Cession waive wekuda kweTexas paRio Grande uye uchitambanudzira kuchamhembe kubva kumusoro kwemvura yeRio Grande, isingaenderane nemiganhu yenharaunda yeMexico. Muganhu wokumaodzanyemba wakagadzwa neChibvumirano cheGuadalupe Hidalgo, icho chakatevera miganhu yeMexico pakati peAlta California kuchamhembe neBaja California neSonora kumaodzanyemba. United States yakabhadhara Mexico mamiriyoni 15 emadhora nokuda kwokukanganiswa kwakakonzerwa nehondo, kwete nyika yakazozivikanwa seMexicoan Cession. 