Mezue ahịrịokwu na-esonụ: Gregg duziri ndị agha ndị agha nke ndị agha nke Potomac na mbido 1864 ruo mgbe Major General Philip Sheridan bịarutere, onye duziri ndị agha nke ndị agha Lt. General Ulysses S. Grant na Overland Campaign. Ihe kachasị mkpa nke ndị agha na-agba ịnyịnya nke Gregg n'oge mkpọsa a bụ iji nyochaa mmegharị nke Union na ndịda, agha na agha, mana a na-eme mwakpo dị mkpa nke mechara na Agha nke Yellow Tavern, ebe J.E.B. Stuart merụrụ ahụ nke ukwuu, na-enye ndị Confederation nnukwu nsogbu. Ngalaba Gregg nọkwa na-arụsi ọrụ ike na
Agha nke Haw's Shop, ebe ọ lụrụ ndị agha Wade Hampton n'ebe ọdịda anyanwụ Hanovertown, Virginia. Hampton nwere ọnụ ọgụgụ ka elu, ma ndị agha Gregg nwere egbe Spencer na-emeghachi. N'ikpeazụ, ndị agha Custer wakporo site n'ala siri ike, na-achụpụ ndị ikom Hampton n'ọnọdụ ha.