 Nyorera kupfuurira kweiyi ndima - Nash akanyoresa muUnion Army musi waSeptember 10, 1861, achiunganidza muKambani D ye27th Regiment Massachusetts Volunteer Infantry mazuva gumi gare gare. Nash akaramba ari muchiuto kwenguva yakasara yeAmerican Civil War, achinyoresa zvakare apo nguva yake yekutanga yekunyoresa yakapera muna 1863. Mukati mehondo, akapinda muhondo makumi maviri, uye pakupedzisira akasimudzirwa pachinzvimbo cheSgt. Nash akakuvadzwa muhondo paPetersburgmusi waJuly 16, 1864. Musi waMarch 8, 1865, Nash akabatwa muNorth Carolina, uye pashure pacho akabatwa kwenguva pfupi semusungwa wehondo kusvikira achinjaniswa musi waMarch 27. Mushure mokupera kwehondo, Nash akabudiswa muuto musi waJune 26, 1865. 