Any person who is a duly qualified member of the national guard or of the reserve components of the armed forces, who is a member of an organized unit and who, in order to receive military training with the armed forces of the United States, not to exceed fifteen (15) days in any one (1) calendar year, leaves a position other than employment of a temporary nature in the employ of any employer, and who shall give evidence defining date of departure and date of return for purposes of military training ninety (90) days prior to the date of departure and who shall further give evidence of the satisfactory completion of such training immediately thereafter, and who is still qualified to perform the duties of such position shall be entitled to be restored to his or her previous or similar position with the same status, pay and seniority. Such seniority shall continue to accrue during such period of absence, and such period of absence for military training shall be construed as an absence without leave and within the discretion of the employer. Said leave may be with or without pay.