Rubuta ci gaba ga wannan sakin layi - Ba tare da wata hanya ba yanzu don saurin warware rikici a arewa, Polk ya ba da izinin mamaye tsakiyar Mexico don ɗaukar babban birnin da tilasta Mexico zuwa teburin tattaunawa, sake tura yawancin sojojin Janar Zachary Taylor zuwa sojojin Janar Winfield Scott. Santa Anna ya tattara sojoji da bindigogi kuma ya yi tafiya da sauri zuwa arewa. Sojojin Santa Anna sun fi na Taylor yawa, amma sojojinsa sun gaji, ba su da tufafi, suna jin yunwa, kuma suna sanye da makamai marasa kyau lokacin da sojojin biyu suka hadu a La Angostura a yakin Buena Vista a ranar 22-23 ga Fabrairu, 1847. Yakin da aka yi a cikin kwanaki biyu ya kawo sakamako mara kyau, tare da Santa Anna ya janye daga fagen fama a cikin dare kamar yadda nasara ta kasance a hannun, yana ɗaukar kyaututtukan yaƙi kamar bindigogi da tutar yaƙi a matsayin hujja na nasararsa. Da sojojin Scott suka sauka a Veracruz
, gidan Santa Anna, da sauri ya koma kudu don shiga tare da masu mamayewa da kare babban birnin. Ga Mexicans zai zama mafi alhẽri idan Scott za a iya hana barin Gulf Coast, amma ba za su iya hana Scott tafiya a kan Xalapa. Santa Anna ya kafa tsaro a Cerro Gordo. Sojojin Amurka sun kewaye shi kuma sun yi nasara da sojojin Santa Anna.