32nd Regiment Massachusetts Volunteer Infantry

32nd Regiment Massachusetts Volunteer Infantry
Fort Warren in Boston harbor where the original companies of the 32nd Massachusetts, known as the "Fort Warren Battalion," first served.
Active	June 1862 – July 11, 1865
Country	United States of America
Allegiance	Union
Branch	Union Army
Type	Infantry
Part of	In 1863: 2nd Brigade (Sweitzer's), 1st Division (Barnes's), V Corps, Army of the Potomac
Commanders
Notable commanders	Col. George L. Prescott Col. Joseph Cushing Edmands Lt. Col. Luther Stephenson Lt. Col. James A. Cunningham
Insignia
V Corps (1st Division) badge

The 32nd Regiment Massachusetts Volunteer Infantry was an infantry regiment in the Union army during the American Civil War. The nucleus of the regiment was a battalion of six companies raised in September 1861 to garrison Fort Warren, the largest fortification in Boston harbor. The battalion was originally known as the 1st Battalion Massachusetts Infantry or the Fort Warren Battalion.

The unit was transferred to the battle front following Abraham Lincoln's urgent call for troops in response to the Confederate advance on Washington during Jackson's Valley Campaign in May 1862. The Fort Warren Battalion arrived in Northern Virginia in June 1862 and, though it did not yet have a complete regimental roster of 10 companies, it then became known as the 32nd Regiment Massachusetts Infantry. In July 1862, the 32nd was assigned to the Army of the Potomac and was shipped to Fortress Monroe to join its new command at the close of the unsuccessful Peninsular Campaign. During the summer of 1862, four more companies were added to the unit and by September 3, 1862, the 32nd had a full regimental roster.

The regiment took part in 30 battles overall including the Second Battle of Bull Run, the Battle of Antietam, the Battle of Fredericksburg, the Battle of Gettysburg, and numerous engagements during the Overland Campaign and the Siege of Petersburg. In the Overland Campaign, during the Battle of Spotsylvania Court House, the unit was heavily engaged and suffered 54 percent casualties—its worst casualties of the war.