7th Cavalry Regiment
Upon graduating, Lt. Custer was assigned to the 2nd US Cavalry.
Just prior to the Battle of Gettysburg, he was promoted to General at the age of 23 and placed in command of a Brigade of Michigan Cavalry.
During the Indian Wars and at Battle of Little Big Horn, he commanded the 7 U.S. Cavalry.
A regiment is commanded by a colonel. A regiment could be divided into two battalions, or from eight to ten companies.
Colonel MacChesnay (A+)
An officer in charge of a regiment typically holds the rank of Colonel in most military organizations. In some armies, particularly in the Commonwealth, this position may also be held by a Lieutenant Colonel, depending on the size and structure of the regiment. The Colonel is responsible for the overall leadership, administration, and operational readiness of the regiment.
usually a regiment
Colonel Robert G. Shaw was the commander of the Maine's 54th (colored) Infantry Regiment.
probably a regiment or brigade
He would command a regiment of artillery
The 54th Massachusetts Infantry Regiment was an all-black unit, commanded by white Colonel Robert Shaw
The word for an officer in charge of a regiment is "Colonel." This rank typically oversees the administration and command of a regiment within a military organization.
Colonel Banastre Tarleton
Colonel Robert Shaw and the 54th Massachusetts Regiment were from Massachusetts. The regiment was one of the first African American units raised in the North during the Civil War and played a significant role in the fight for freedom and equality. Shaw, a white officer, led the regiment and became a symbol of bravery and commitment to the cause.
This is the famous Massachusetts 54th Infantry Regiment, colored troops. They were led by white officers, Colonel Robert Shaw commanding