Idaho Code § 46-103
The militia of the state of Idaho shall be divided into three (3) classes, to wit:
The national guard, the organized militia, and the unorganized militia. The national guard shall consist of enlisted personnel between the ages of seventeen (17) and sixty-four (64), organized and equipped and armed as provided in the national defense act, and of commissioned officers between the ages of eighteen (18)and sixty-four (64) years, who shall be appointed and commissioned by the governor as commander-in-chief, in conformity with the provisions of the national defense act, the rules and regulations promulgated thereunder, and as authorized by the provisions of this act. The organized militia shall include any portion of the unorganized militia called into service by the governor, and not federally recognized. The unorganized militia shall include all of the militia of the state of Idaho not included in the national guard or the organized militia.
Idaho Code § 46-103