RSA 111:18: Enlistments.

In peace time, no person shall be enlisted in or appointed to the state guard by the adjutant general for more than 2 years; but, in the event that prior to the expiration of such term of enlistment the United States becomes involved in war, such enlistments shall be for the duration of the emergency, subject to such regulations to the contrary as may be promulgated by the governor.