All state, county, municipal, school district and other public employees who are members of the state defense force shall be given not to exceed fifteen working days military leave with pay per federal fiscal year when they are ordered by the adjutant general to cadre duty with such organized units, such leave to be in addition to other leave or vacation time with pay to which such employees are otherwise entitled. The governor may grant any member of the state defense force who is a state employee additional military leave with pay, in excess of that allowed above, not to exceed fifteen working days per year for periods of cadre duty for training when he deems that such training will benefit the state by enabling that employee to better perform the duties required in his state occupation.