Haw. Rev. Stat. § 121-6: Organization and reorganization of units.

The governor may organize, alter, divide, annex, consolidate, and reorganize the army and air national guard into divisions, brigades, regimental combat teams, regiments, battle groups, battalions, squadrons, batteries, companies, and similar organizations in accordance with their strength as authorized from time to time and in conformity with the tables of organization prescribed by the secretaries of the army and of the air force. The governor may change the location of units, and subject to the approval of the appropriate secretary, redesignate units or organizations.