 Ramba uchinyora ndima iyi - Reynolds akasarudzwa kuUnited States Military Academy muna 1837 naSenator James Buchanan, shamwari yemhuri, uye akapedza kudzidza ari wechi 26 pavadzidzi 50 mukirasi ya1841. Akagadzwa kuva mukuru mukuru wechipiri mu3rd U.S. Artillery, akapiwa kuFort McHenry. Kubva muna 1842 kusvika muna 1845 akaendeswa kuSt. Augustine, Florida, uye Fort Moultrie, South Carolina, asati ajoina mauto aZachary Taylor kuCorpus Christi, Texas, muHondo yeMexico neAmerica. Akapiwa kukwidziridzwa kaviri muMexico kuva kaputeni nokuda kwoushingi paMonterreyuye kumukuru mukuru weBuena Vista, uko chikamu chake chezvombo chakatadzisa vatasvi vemabhiza vokuMexico kupoteredza kuruboshwe rweAmerica. Munguva yehondo, akava shamwari neshamwari dzake Winfield Scott Hancock naLewis A. Armistead. 