The armed forces of the state may assemble for drill, escort duty or any special service as ordered by the Governor and shall participate in encampments, maneuvers or other exercises, including outdoor target practice, as may be required by the laws and regulations of the United States relating to the National Guard or naval militia or as may be ordered by the Governor. Each officer and employee of the state who is a member of the armed forces of the state or of any reserve component of the armed forces of the United States shall be entitled to absent himself from his duties or service while engaged in the performance of regularly ordered military or naval duty. No such officer or employee shall be subjected by any person, directly or indirectly, by reason of such absence, to any loss or reduction of vacation or holiday privileges or be prejudiced by reason of such absence with reference to promotion or continuance in office or employment or to reappointment to office or to reemployment. While engaged in the performance of regularly ordered military or naval service, each officer or employee who is a bona fide member of the National Guard, naval militia, reserve corps or organized militia shall receive his salary or compensation as such officer or employee, provided the period of absence in any calendar year shall not exceed thirty days.