Kammala wannan jumla: Daga bisani aka sanya shi zuwa jirgin ruwa, Balch ya yi aiki a lokacin yakin da Mexico. Ya shiga cikin harin da aka yi a watan Agusta 1846 a kan Alvarado, inda karfin ruwa a cikin kogin ya hana jiragen ruwa na jirgin ruwa daga saukowa, kuma a cikin nasarar da aka samu a ranar 9 ga Maris, 1847 na rundunar Janar Winfield Scott a
Vera Cruz. - Ta yaya za ka yi haka? A lokacin yakin na karshe, Balch ya yi aiki a matsayin mai kula da jirgin ruwan da aka kama.