<prompt> Qedela le nkulumo elandelayo: Njengoba yayingekho indlela yokuxazulula ngokushesha ingxabano enyakatho, uPolk wagunyaza ukuhlasela maphakathi neMexico ukuze athathe inhloko-dolobha futhi aphoqe iMexico ukuba ihlale etafuleni lezokuxoxisana, eqondisa ingxenye enkulu yamabutho kaJenene Zachary Taylor ebuthweni likaJenene Winfield Scott. USanta Anna waqoqa amabutho nezikhali zempi futhi ngokushesha wahamba waya enyakatho. Amabutho kaSanta Anna ayemaningi kunalawo kaTaylor, kodwa amabutho akhe ayediniwe, egqoke kabi, elambile, futhi ehlome ngezikhali eziphansi lapho amabutho amabili ehlangana eLa Angostura eMpini yaseBuena Vista ngomhlaka 22 kuya ku-23 kuFebhuwari 1847. Ukulwa okunzima izinsuku ezimbili kwaletha umphumela ongacacile, uSanta Anna wasuka enkundleni yempi ngobusuku obubodwa njengoba ukunqoba okuphelele kwakuseduze, ethatha izindondo zempi ezinjengezibhamu namafulegi empi njengobufakazi bokunqoba kwakhe. Ngibuthene nebutho likaScott  <response>: esefike eVeracruz, indawo yaseSanta Anna, washesha waya eningizimu eyolwa nabahlaseli futhi avikele inhloko-dolobha. KwabaseMexico kwakuyoba ngcono ukube uScott wayengavinjelwa ukuba ashiye iGulf Coast, kodwa abakwazanga ukuvimbela ukuhlasela kukaScott iXalapa. USanta Anna wamisa izivikelo eCerro Gordo. Amabutho ase-U.S. amzungeza futhi anqoba ibutho likaSanta Anna naphezu kwezimo ezinzima. 