Kan. Stat. § 48-239
Should the national guard of the state when so recruited be insufficient to fill the requirements of said requisition of the president, or when additional troops are needed for service, the governor may call for volunteers from the reserve militia of the state, and provide for their examination and mobilization, and form the same into additional companies, battalions and regiments as may be required, and appoint and commission officers therefor; and said troops, when called for by the president of the United States and ordered into service thereof, shall serve within or without the state as he or she may direct, and during the time specified in said call or requisition; and where volunteers are called into the service of the state only, they shall be subject to the same discipline and penalties and receive the same pay as the regular national guard of the state; and such temporary volunteers shall be discharged when directed by the commander in chief, or as soon as the emergency for which they were required has passed.
K.S.A. 48-239