 Ramba uchiverenga ndima iyi - Pakatanga Hondo Yenyika yeAmerica, Bryant akazvipira kushanda nechikwata chemasoja eWisconsin uye akanyoresa mu3rd Wisconsin Infantry Regiment. Akaramba basa romukuru mukuru, asi pakurongwa kwechikwata chacho, akagadzwa kuva mukuru mukuru. Mukati megore, iye zvakadaro akagamuchira komisheni uye akagadzwa kuva mubetseri kumukuru wepurovhinzi, Thomas H. Ruger. Na 3rd Wisconsin Infantry, Bryant akapinda muhondo dzakawanda dzakakosha dzehondo yekumabvazuva yehondo, kusanganisira Antietam, Chancellorsville, uye Gettysburg. Muna August 1863, akanga ari muboka rakatumwa kunopedza mhirizhonga yokuunganidza vanhu kuNew York City. 