United States Colored Troops (English Wikipedia)

Douglass, Frederick (July 6, 1863). Speech at National Hall, for the Promotion of Colored Enlistments (Speech). Mass meeting held at National Hall, Philadelphia. National Hall, Philadelphia. Retrieved December 7, 2023.
Words of our Hero: Ulysses S. Grant, edited by Jeremiah Chaplin, Boston: D. Lothrop and Company, pp. 13–14.
Grant, Ulysses (1863). "Letter to Richard Taylor". Vicksburg. I feel no inclination to retaliate for the offences of irresponsible persons; but if it is the policy of any General intrusted with the command of troops to show no quarter, or to punish with death prisoners taken in battle, I will accept the issue. It may be you propose a different line of policy towards black troops, and officers commanding them, to that practiced towards white troops. So, I can assure you that these colored troops are regularly mustered into the service of the United States. The Government, and all officers under the Government, are bound to give the same protection to these troops that they do to any other troops.
Schubert, Frank N. (1997). Black Valor: Buffalo Soldiers and the Medal of Honor, 1870-1898. Scholarly Resources Inc. pp. 4-5. ISBN 9780842025867.
Schubert, Frank N. (1997). Black Valor: Buffalo Soldiers and the Medal of Honor, 1870-1898. Scholarly Resources Inc. pp. 2-4. ISBN 9780842025867.

archives.gov

"Black Soldiers in the U.S. Military During the Civil War". National Archives. August 15, 2016. Retrieved January 5, 2021.

Henderson, Steward (October 27, 2020). "The Role of the USCT in the Civil War". www.battlefields.org. American Battlefield Trust. Retrieved July 6, 2023.

Thomas, Richard Walter (January 1996). Standfield II, John H. (ed.). Understanding interracial unity: a study of U.S. race relations. Sage series on race and ethnic relations. Vol. 16. Sage Publications. p. 31. ISBN 978-0-8039-4602-6.

Mezurek, Kelly D. "U.S. Colored Troops as Prisoner Guards" (video), in "Emerging Civil War." Washington, D.C.: C-SPAN, August 4, 2017.

"The Roanoke Island Freedmen's Colony"; Carolina Country Magazine, date?, accessed November 10, 2010

Congress of the Confederate States of America (April 15, 2014). "No. 5". Joint Resolution on the Subject of Retaliation. May 1, 1863. Retrieved March 6, 2016.{{cite web}}: CS1 maint: location (link)

Fletcher, Marvin. 2019. "For Their Own Cause: The 27th United States Colored Troops By Kelly D. Mezurek", in Indiana Magazine of History, vol. 113, no. 2, pp. 163-65.

Fry, Zachery A. (October 2017). "Philadelphia's Free Military School and the Radicalization of Wartime Officer Education, 1863-64". Pennsylvania Magazine of History and Biography. 141 (3): 278–279. Retrieved July 6, 2023.

"Wild West Western Facts, Buffalo Soldiers". The Wild West. Archived from the original on December 8, 2015. Retrieved December 3, 2015.

Chris Tabor, "Skirmish at Island Mound", Island Mound website, accessed 12 Oct 2009

Republican Party (June 7, 1864). "Republican Party Platform of 1864". Archived from the original on April 21, 2015. [T]he Government owes to all men employed in its armies, without regard to distinction of color, the full protection of the laws of war—and that any violation of these laws, or of the usages of civilized nations in time of war, by the Rebels now in arms, should be made the subject of prompt and full redress.

Republican Party (June 7, 1864). "Republican Party Platform of 1864". Archived from the original on April 21, 2015. [T]he Government owes to all men employed in its armies, without regard to distinction of color, the full protection of the laws of war—and that any violation of these laws, or of the usages of civilized nations in time of war, by the Rebels now in arms, should be made the subject of prompt and full redress.
45th United States Colored Troops
"Wild West Western Facts, Buffalo Soldiers". The Wild West. Archived from the original on December 8, 2015. Retrieved December 3, 2015.
"Memorial & Museum History". www.afroamcivilwar.org. Archived from the original on February 10, 2022. Retrieved February 10, 2022.