Originally Posted by
AUG351
Actually volunteer regiments were often comprised of pre-war local and state militia units. Many of the individual companies that made up the volunteer regiments were formed from local and state militia units, and in some cases entire state militia regiments mustered into the US or CS service and became official "volunteer regiments".
But if you mean militia units during the war then that is a different matter. There were state militia units and home guard units during the war, and these were often made up of the untrained and inexperienced men and boys who were either too old, too young, or not physically fit enough to serve in a regular volunteer regiment at the front.