<prompt> Qedela umusho olandelayo: I-Independent Battery D, Pennsylvania Light Artillery, kwakuyi- artillery battery eyayisebenzela i-Union Army ngesikhathi se-American Civil War. 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 ka-1864 kuya ku-1865 yabona iyunithi ilwa ekuhlaselweni kokuqala kwePetersburg, iCrater,  <response>: Isiteshi sikaReam, iMpi yasePeebless Farm, iFort Stedman, nokuhlaselwa kokugcina kwePetersburg. I-Battery D yaba nengxenye ekubuyekezweni okukhulu kwamabutho ngaphambi kokuba ikhishwe. 