Whakaotihia te rerenga e whai ake nei: I whakahoutia a Cooper hei kaikawe-koroneela o te 4th Kentucky Cavalry i te Maehe 26, 1863 a ka riro hei koroneela i te Paenga-whawha; whai muri i te wehenga o te Koroneela Bayles. I te Pipiri 4, 1863, i whara a Cooper i te hinganga o tetahi hoiho ki a ia i Franklin, Tennessee. I whakahaua e ia te ope i te Pakanga o Chickamauga i te Mahuru 1864. I hoki a Cooper ki Lexington, Kentucky i te tau 1864 mo te hararei mate. Kātahi ka ārahi a Cooper i ngā ope ā-rohe ki ngā kaipahua a John Hunt Morgan. I whakakahoretia e ia nga tono a Morgan mo te tuku o Lexington i te Pipiri 9, 1864 ka peia ana hoia. I te Paenga-whāwhā o te tau 1865 i whakahau ia i te pou o Montgomery, Alabama, i te marama o Mei me te Hurae o te tau 1865 i te pou o Albany, Georgia. I whakahonoretia ia i te Akuhata 21, 1865 i Macon, Georgia. I whakawhiwhia ki a ia nga honore whawhai mo tana mahi i Shiloh, Koriniti, Richmond, Chickamauga, te whakaekenga a Morgan ki Kentucky, te Pakanga o Resaca me te whakaekenga a Wilson ki Montgomery. I whakawhiwhia ia ki a Lt. Colonel me te Koronela i te ope taua i te Maehe 2, 1867, mo nga ratonga toa me te mahi nui i te
Ko te Pakanga o Resaca i Georgia me te hopu o Montgomery, Alabama.