Whakaotihia te rerenga e whai ake nei: I te 22 o Akuhata 1861, i uru a Rice ki te 14th Massachusetts Infantry a i whakawhiwhia ia hei rangatira. Kaore i roa ka nekehia ia ki te 19th Massachusetts Infantry Regiment hei whakahau i te Kamupene F. Na taua roopu i uru ia ki nga pakanga o te Pakanga Tangata o: Ball's Bluff, Siege of Yorktown,
Ko Fair Oaks, ko Savage Station, ko Glendale, ko Malvern Hill. I whakatairangahia ia ki te taumata o te rangatira i te 7 Sep 1862 ka whawhai ia i Antietam i muri mai i te marama o Hepetema 1862, me te Pakanga o Fredericksburg i te Tihema 11-13, 1862. Mo ana mahi i te Pakanga o Gettysburg i te whakaheke i te whakapae a Pickett, i whakawhiwhia ia ki te Tohu Tohu i te tau 1891. I eke ia ki te taumata o te kaumatua i te 28 o Hui-tanguru 1864, i whakahau ia i tana rerenga i te pakanga o Rapidan, i nga pakanga o Bristoe Station, Blackburn's Ford, Robinson's Cross Roads, me te Mine Run. I whakahaua e ia te 19 i te Pakanga o te Moana i te Mei 5 ki te 7, 1864 me te pakanga o Laurel Hill i te Mei 8, 1864. I whara ia, i mauheretia i te whakaekenga i te Pakanga o Spotsylvania Court House, Mei 12, 1864. I a ia e kawea ana hei herehere i te Mei 23, ka mawhiti ia ma te tapahi i te tatau o te waka kawenga ka peke atu i a ia i te wa e haere ana te tereina i te 15 mph. I tae ia ki nga raina o te Uniana, e tata ana ki te awa o Ohio, e rua tekau ma toru nga ra i muri mai. I whakatairangahia ia ki te koromatua i te 28 o Hurae 1864.