Davy Crockett explains partly how the militia worked. When Andrew Jackson was fighting the Indian wars, he needed help, so he asked the men local men to volunteer for thee months. The ones that volunteered brought their muskets. They were not forced, of course, to join, nor was there jail time if they did not.
Crockett, when he was in Congress, had a major falling out with Jackson.
Very true. BTW, I think just about everybody had a major falling out with Jackson. He could, at best, be described as a difficult man.