Congress passed the Militia Act of 1862, which for the first time authorized the President to accept people of African descent into U.S. military service. The law opened a legal pathway for Black enlistment, though early roles often included labor and support work as well as combat duty. This marked a major policy shift from earlier Union reluctance to arm Black men.
The 1st Kansas Colored Volunteer Infantry fought pro-Confederate guerrillas at the Skirmish (Battle) of Island Mound. The engagement became an early proof-of-concept that Black troops could stand up in combat, even before large-scale federal recruitment was fully organized. Reports of their performance helped push Union leaders toward broader enlistment of African American soldiers.
Lincoln’s Emancipation Proclamation declared freedom for enslaved people in areas in rebellion and tied emancipation to Union war aims. It also stated that people of suitable condition would be received into U.S. armed service, expanding the push for Black enlistment. This made Black military service a central part of how the Union pursued victory and undermined the Confederacy.
Secretary of War Edwin M. Stanton directed Massachusetts Governor John A. Andrew to raise African American regiments for federal service. This decision helped create some of the most visible early Black units in the North, including the 54th Massachusetts. It also showed the War Department moving from limited experiments to organized recruitment efforts.
After recruiting and training, the 54th Massachusetts Infantry mustered into U.S. service. The regiment became a nationally recognized symbol of Black soldiers’ willingness to fight for the Union and for freedom. Its creation also highlighted inequality in the system, including the rule that officers in many early Black regiments were white.
General Order No. 143 created a new bureau within the Adjutant General’s Office to manage the organization of “Colored Troops.” This centralized system standardized how units were raised and recorded, and it formalized the United States Colored Troops (USCT) as a major part of the Union Army. Over time, the bureau oversaw the rapid expansion of Black military participation.
Newly recruited Black regiments helped defend Union supply bases during the Vicksburg Campaign at Milliken’s Bend in Louisiana. Despite limited training, many fought in close combat, and Union gunboats helped drive off the attackers. The battle became an influential example cited by supporters of Black enlistment, showing the strategic value of USCT in major campaigns.
The 54th Massachusetts led an assault on Fort Wagner near Charleston, South Carolina, suffering heavy casualties and failing to capture the fort. Even so, the attack drew wide attention and helped counter claims that Black troops would not fight. Sergeant William Harvey Carney’s actions with the regimental flag later became one of the best-known examples of bravery associated with Black Civil War soldiers.
Confederate forces captured Fort Pillow, Tennessee, and many Union defenders—especially Black soldiers—were killed in what became widely described in the North as a massacre. The event intensified fear among USCT that surrender might not be honored and strengthened calls for equal treatment and protection under the laws of war. It also shaped Union public opinion about the stakes of Black military service.
Congress passed a law providing equal pay, benefits, and supplies for soldiers of color, addressing one of the most visible inequalities faced by USCT. The act set equal treatment moving forward and authorized back pay in certain cases, reflecting sustained protests by Black soldiers and their allies. Pay equity mattered not just for fairness, but for morale, recruitment, and recognition of service.
During the Siege of Petersburg, a massive mine explosion created a breach in Confederate lines, but the Union assault collapsed into chaos at the Battle of the Crater. African American troops were committed to the attack and suffered disproportionate losses, and the failed operation highlighted both command problems and racial prejudice in how Black units were used and judged. Despite the defeat, USCT continued to serve in key operations through the final months of the war.
USCT units charged fortified Confederate positions at New Market Heights, north of the James River near Richmond. Their actions helped secure a Union victory and demonstrated disciplined performance under intense fire. Fourteen USCT later received the Medal of Honor for this battle, making it one of the most recognized moments of Black valor in the Civil War.
Congress passed the Thirteenth Amendment, beginning the constitutional process to abolish slavery nationwide. This marked a decisive shift from wartime emancipation measures to permanent constitutional change. For many USCT soldiers, the amendment aligned the Union’s legal end goals with what they had been fighting for on the battlefield.
Robert E. Lee surrendered the Army of Northern Virginia to Ulysses S. Grant at Appomattox Court House, signaling the collapse of the Confederacy’s principal field army. By this point, USCT had become a major part of Union manpower and had served in combat and garrison roles across multiple theaters. The surrender set the stage for demobilization and for debates over citizenship and rights for Black veterans.
With ratification, the Thirteenth Amendment abolished slavery throughout the United States. This provided a clear legal endpoint for the central issue that drove Black enlistment and shaped USCT service. The wartime experience of USCT—fighting for the Union while demanding equal treatment—also became a foundation for postwar struggles over civil rights and recognition of Black military service.
African American Soldiers and the United States Colored Troops (USCT) (1862–1865)