İttifaq (ing. Union) — Vətəndaş müharibəsi dövründə 24 şimal ştatının federasiyası. Cənub Amerika Konfederativ Ştatları əleyhinə idi.
- Gallagher, Gary W. The Union War (2011), emphasizes that the North fought primarily for nationalism and preservation of the Union
- Gallman, J. Matthew. The North Fights the Civil War: The Home Front (1994)
- Neely, Mark. The Divided Union: Party Conflict in the Civil War North (2002)
- Rorabaugh, William J. "Who Fought for the North in the Civil War? Concord, Massachusetts, Enlistments, " Journal of American History 73
- Lincoln Administration links Arxivləşdirilib 2015-08-01 at the Wayback Machine
- Civil War Soldiers
- Abraham Lincoln online Arxivləşdirilib 2011-05-14 at the Wayback Machine
- "Financial Measures," by Nicolay and Hay (1889)
- "Lincoln Reelected," by Nicolay and Hay (1889)
- "First Plans for Emancipation," by Nicolay and Hay (1889)
- "Emancipation Announced," by Nicolay and Hay (1889)