Wisconsin Statutes Code of Military Justice (Ch. 322) § 322.005. Article 5--Territorial applicability of this code

(1) This code has applicability in all places, provided that either the person subject to this code is in a duty status or, if not in a duty status, that there is a nexus between the act or omission constituting the offense and the efficient functioning of the state military forces;  however, this grant of military jurisdiction shall neither preclude nor limit civilian jurisdiction over an offense.

(2) Military courts may be convened and held in units of a state military force while those units are serving outside the state with the same jurisdiction and powers as to persons subject to this code as if the proceedings were held inside the state, and offenses committed outside the state may be tried and punished either inside or outside the state.