 Nyora kupfuurira kweiyi ndima - Brooks akaona kurwa muHondo yechipiri yeSeminole uye Hondo yeMexico neAmerica. Akatora chikamu muhondo yePalo Alto uye Hondo yeResaca de la Palma muna 1846. Akaona chiito chakakura muHondo yeMonterrey, uye akagamuchira chiremera chekutungamira kwe gallant and meritorious conduct. Gore rakatevera racho, Brooks akanga ari paKukombwa kweVera Cruz, Hondo yeCerro Gordo, Hondo yeOcalaca, Hondo yeContreras, uye Hondo yeChurubusco. Akagamuchira kukwidziridzwa kwepa brevet kusvika kuvakuru, Nyamavhuvhu 20, 1847, nokuda kwehutano uye hunofanirwa kutungamirirwa paContreras neChurubusco. Akashanda muuto raGeneral David E. Twiggs kwehondo yose. 