<prompt> Bhala ukuqhubeka kwalesi sigaba - I-Independent Battery D, Pennsylvania Light Artillery, kwakuyi-artillery battery eyayisebenzela i-Union Army ngesikhathi seMpi Yombango yaseMelika. Le yunithi yahlelwa ngo-21 Septhemba 1861 futhi yasebenza kwaze kwaba ngu-13 Juni 1865. I-battery yabamba iqhaza ezimpini zeSecond Bull Run, Chantilly, South Mountain, Antietam, naseFredericksburg ngo-1862. Ngonyaka olandelayo, iBattery D yathuthelwa endaweni yempi yaseNtshonalanga lapho yathatha khona iqhaza ekuvinjezelweni kweVicksburg nakwezinye izinhlelo. Iminyaka ye-1864 65 yabona iyunithi ilwa ekuhlaselweni kokuqala kwePetersburg, iCrater, Isiteshi sikaReam  <response>: , iMpi yasePeebless Farm, iFort Stedman, nokuhlaselwa kokugcina kwePetersburg. I-Battery D yaba nengxenye ekubuyekezweni okukhulu kwamabutho ngaphambi kokuba ikhishwe. 