No military force from another state, territory, district, or country shall be permitted to enter the state for the purpose of doing military duty therein, except as provided in § 30-12-3, without the permission of the governor, unless this force is part of the Department of Defense or is acting under the authority of the United States.
Entry into state by armed forces from outside
R.I. Gen. Laws § 30-12-4., under Chapter 30-12 General Offenses.
R.I. Gen. Laws § 30-12-4.