To the extent permitted by the Constitution and laws of the United States, the Governor may:
(1) Order into active state service, recognize existing, or authorize the establishment of organizations of the unorganized militia, of designated classes thereof, or of volunteers therefor, as he may deem to be for the public interest;
(2) Prescribe for those organizations enumerated in paragraph (1) of this Code section such parts of the regulations governing the organized militia as may be applicable thereto or establish such regulations therefor, or both, as he may deem proper; and
(3) Provide for the separate organization of the unorganized militia and authorize the enlistment in such organizations of persons volunteering for such service who are not otherwise subject to military duty under Code Section 38-2-3.