Mississippi Code Title 33. Military Affairs § 33-13-7

(1) This code applies to all members of the state military forces who are not in active federal service of the United States.

(2) The voluntary enlistment of any person who has the capacity to understand the significance of enlisting in the state military forces shall be valid for purposes of jurisdiction under subsection (1) of this section and a change of status from civilian to member of the state military forces shall be effective upon taking the oath of enlistment.

(3) Notwithstanding any other provision of law, a person serving with the state military forces who:

is subject to this code until such person's service has been terminated in accordance with law or regulations.