All persons subject to military duty under the constitution of this state and not exempt therefrom by the provisions of this act, and such other persons as shall voluntarily enroll themselves, shall be divided into three classes: One consisting of the federally recognized national guard, to be known as the "Kansas army and air national guard"; one consisting of those able-bodied citizens prescribed and contemplated in article 8 of the constitution of the state of Kansas not in the "Kansas army and air national guard" to be known as "the militia"; and one to consist of all those subject to military duty, but not included in the "Kansas army and air national guard" or "the militia," to be known as the "Kansas military reserve."
K.S.A. 48-101