<prompt> Pedzisa mutsara unotevera: Muna 1846, pakutanga kweHondo yeMexico neAmerica, Roberts akagadzwazve kuti ave mukuru mukuru, Mounted Rifles, muRegional Army. Akasimudzirwa kuva kaputeni muna 1847, uye akaona chiito paVeracruz, Cerro Gordo, Contreras,  <response>: Churubusco, uye kubatwa kweMexico City, Matamoros neGalajara pass. PaChurubusco, akapiwa chinzvimbo chechigamba chikuru nokuda kwokutungamirira boka raipfuura ravarwi. Akagamuchira imwezve ropafadzo, kuna lieutenant colonel muna 1847 nokuda kwoushingi munguva yehondo. Pashure pokuguma kwehondo, akashanda pamuganhu uye muWashington, D.C. 