Nyora kupfuurira kweiyi ndima - Muna May 1864 akachinjirwa kutungamirira Artillery panguva yekukombwa kwePetersburg. Musi waDecember 12, 1864, Mutungamiri Abraham Lincoln akasarudza Abbot kuti asarudzwe kuti ave mutevedzeri weBrigadier General of Volunteers kuti ave nechinzvimbo kubva munaAugust 1, 1864 uye Senate yeUnited States yakasimbisa kusarudzwa musi waFebruary 20, 1865. Muna Zvita 1864 akaiswa mukutungamira kwezvombo zvose zvokukomba muHondo yePotomac neHondo yeJames iyo yakanga yakakomberedza Petersburg. Muna January 1865 General Alfred H. Terry akakumbira General Abbot kuti aende neuto rake rokufambisa kuFort Fisher. Abbot akarayira brigade yenguva pfupi yezvombo zvepfuti panguva yekubudirira kwechipiri Hondo yeFort Fisher
.