much of the design of the confederate states army was based on the structure and customs of the u.s. army. both armies were mainly infantry, cavalry and artillery units. while the structure of the two armies was very similar, the number of men in each unit could be different. many confederate officers were graduates of west point just like union officers. regiments were usually numbered and named for the state where they were first organized and where most of the soldiers came from. brigades were usually named after their commanders (past or present). for example, the stonewall brigade was named for its commanding general, stonewall jackson.