Major, Surgeons, Chaplains, Mucisians, etc. Several regiments formed a brigade commanded by a Brigadier General. These large units were typically named for their commanding general and were organized for a campaign or as part of a standing army. Corps formed by several divisions. Normally each military district of the CSA maintained a standing army.
Battalions are smaller than regiments.
A small artillery unit composed of from one to four guns. Normally the size of a company. A unit composed of infantry, artillery and cavalry. Made up of divisions,brigades,regiments, battalions and companies. Made up of brigades regiments, battalions and companies.