The Adjutant General shall be appointed by the Governor, by and with the advice and consent of the Senate, for a term of four years. He or she shall have the rank of major general, or such other rank as is recognized by federal authority. No person may be appointed Adjutant General unless he or she has had at least six years' commissioned service and attained field grade or higher rank in the organized militia of this or some other state or in the Armed Forces of the United States, or in all combined. The Governor shall require the Adjutant General to furnish bond as required by law, which bond shall be filed with the Auditor of the state.