N'afọ 1846, e buliri ya n'ọkwa lieutenant nke abụọ ma lụọ agha n'agha ndị agha Zachary Taylor n'oge agha Palo Alto
, Resaca de la Palma na Monterrey. Mgbe ahụ, ọ sonyeere ndị agha Winfield Scott wee daa na Vera Cruz ma lụọ agha niile nke mkpọsa Scott nke mechara daa na Mexico City. E nyere ya ikike ịbụ onye isi n'ihi obi ike na omume ọma n'agha nke Contreras na Churubusco ma nyeghachi ya ikike ịbụ onye isi maka ọrụ ya n'agha nke Molino del Rey ma nata otuto nke onye isi ndị agha ya, William J. Worth. Tupu mmalite nke Agha Obodo, a na-ekwu na ọ bụ ezigbo enyi nke ndị ọchịagha Robert E. Lee, Joseph E. Johnston na P. G. T. Beauregard.