 Ramba uchinyora ndima iyi - Hondo yevagari vomuAmerica payakatanga, Duffié akanyoresa muuto reUnion. Akatanga kubatana ne2nd New York Cavalry Regiment inozivikanwawo seHarris Light Cavalry, musi waAugust 9, 1861, uye akakurumidza kukwidziridzwa kuva kaputeni. Duffié akanga achinyanya kukakavadzana akasungwa kanoverengeka nokuda kwekurwisana nevamwe vakuru vakuru; mune chimwe chiitiko, akashora General Fitz John Porter kuti aite duel. Muna Chikunguru 1862 Duffié akagadzwa kuti atungamire 1st Rhode Island Cavalry, aine chinzvimbo checolonel, nagavhuna wenyika iyoyo, William Sprague IV. Kunyange zvazvo vakuru vakuru ve1st Rhode Island pakutanga vakaramba kushanda pasi pemutungamiri akaberekerwa kunze kwenyika, Duffié akakurumidza kuvakunda uye akarongazve 1st kuva chikwata chakanaka chokurwisana. Vachitungamirirwa naGeneral William Averell, vakaona mauto eConfederate achitungamirirwa naThomas J. Stonewall Jackson muna August 1862, mukurwisana pedyo neCedar MountainVirginia. 