Has the U.S. ever assembled a militia? How would a militia be different from a national draft? Would gun ownership in the U.S. trump any ethical or religious objection to joining a militia?
Virginia has one. Current law says it consists of the national guard, the Virginia Defense Force and the "unorganized militia." It's unclear to me if just anyone can claim they are part of the "unorganized militia." The state code says the militia is "composed of the body of the people," which I supposed could mean anyone. Previously, during the colonial period, the militia was compulsory, but today it's all volunteer.