What Is 15th United States Colored Infantry

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Last updated: April 14, 2026

Quick Answer: The 15th United States Colored Infantry was an African American regiment formed in 1863 during the Civil War, officially organized at Camp William Wells in Maryland. It served in key campaigns including the Siege of Petersburg and the Battle of the Crater, contributing to Union efforts in Virginia. The regiment was mustered out in 1865 after the war ended, having lost 210 men, including 5 officers and 155 enlisted through combat and disease.

Key Facts

Overview

The 15th United States Colored Infantry was one of over 175 regiments of African American soldiers raised by the Union Army during the American Civil War. Authorized by the U.S. War Department in 1863 following the Emancipation Proclamation, this regiment was part of the broader effort to recruit Black men into the military, marking a pivotal shift in U.S. military and social policy. These troops were collectively known as the United States Colored Troops (USCT), and their formation represented both a strategic military decision and a symbolic step toward racial equality.

Recruitment for the 15th USCT began in late 1863, primarily in the border states and Northern free states, including Maryland, where the regiment was officially organized at Camp William Wells near Baltimore. The camp was one of several established specifically for training African American soldiers, many of whom were formerly enslaved or free Black men seeking to prove their loyalty and claim full citizenship. Despite facing racial prejudice and initially lower pay than white soldiers, these men enlisted in large numbers, driven by a desire for freedom, dignity, and the defeat of the Confederacy.

The 15th USCT played a significant role in the Eastern Theater of the war, particularly during the 1864–1865 Petersburg Campaign. Their service helped undermine the Confederate war effort and demonstrated the combat effectiveness of Black soldiers, challenging widespread racist assumptions. The regiment’s contributions were part of a larger transformation in American society, as over 180,000 African American soldiers served in the USCT, comprising about 10% of the Union Army by war’s end.

How It Works

The 15th United States Colored Infantry operated under the same military structure as other Union regiments but with unique challenges due to racial discrimination and evolving policies. Commanded primarily by white officers, the regiment followed standard Union Army protocols while also navigating the political and social implications of being Black soldiers in a segregated military.

Key Details and Comparisons

RegimentFormedLocationKey EngagementsCombat LossesNotable Fact
15th USCT1863MarylandPetersburg, The Crater5 officers, 155 enlisted killedFought in Army of the James
54th Massachusetts1863MassachusettsFort Wagner, James Island200+ casualties at Fort WagnerFirst Black regiment raised in the North
1st USCT1863Washington, D.C.Port Hudson, Milliken’s BendOver 100 killedFirst USCT regiment organized
28th USCT1864OhioRichmond, TexasLow combat lossesLater served in Reconstruction
116th USCT1865KentuckyNone (mustered late)0 combat deathsFormed after war’s end

The comparison highlights the varied experiences of USCT regiments based on timing, location, and command structure. The 15th USCT was more combat-exposed than many others, particularly due to its involvement in the grueling Siege of Petersburg, which lasted over nine months. Unlike the famed 54th Massachusetts, which gained recognition for its heroic assault on Fort Wagner, the 15th’s contributions were less publicized but equally vital. The data also shows that earlier regiments like the 1st and 15th saw more action, while later-formed units, such as the 116th, missed major combat. This underscores the strategic importance of timing in the deployment of African American troops during the Civil War.

Real-World Examples

The 15th USCT saw action in several critical operations. During the Battle of the Crater on July 30, 1864, the regiment was part of a massive Union effort to break Confederate lines at Petersburg by detonating a mine under enemy fortifications. Though the initial explosion created a 170-foot gap in the defenses, poor coordination led to heavy Union casualties. The 15th USCT advanced into the chaos, facing intense fire and suffering significant losses. Despite the failed assault, their bravery under fire was noted in official reports.

Other documented actions include guard duty along the James River, participation in trench warfare, and repelling Confederate raids. The regiment’s daily life was marked by hardship, including inadequate supplies and racial hostility from both enemies and some Union soldiers. Their perseverance helped shift public opinion about the capabilities of African American soldiers.

  1. Battle of the Crater (July 30, 1864): The 15th USCT joined the assault after the mine explosion, facing brutal close-quarters combat.
  2. Siege of Petersburg (June 1864–April 1865): The regiment maintained trenches and participated in multiple offensives.
  3. Defensive Actions at Bermuda Hundred: Helped secure Union supply lines south of Richmond.
  4. March to Appomattox: Participated in the final pursuit of Lee’s army in April 1865.

Why It Matters

The legacy of the 15th United States Colored Infantry extends far beyond battlefield statistics. Their service challenged the entrenched racism of 19th-century America and laid the foundation for future civil rights advancements. By proving their valor and dedication, these soldiers helped redefine the meaning of citizenship and patriotism.

The 15th United States Colored Infantry may not be as widely remembered as the 54th Massachusetts, but its role in the Union victory and the broader struggle for equality remains significant. Their sacrifices helped end slavery and redefined the role of African Americans in national defense and civic life.

Sources

  1. WikipediaCC-BY-SA-4.0

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