You can have a veteran identifier printed on your Wisconsin driver licence or state ID card as proof of your military service.
Get WDVA verification first, by calling 800-WIS-VETS (800-947-8387) and choosing option 1, online through MyWisVets, or by submitting the WDVA eligibility application for the WisDOT veteran identifier to the address on the form. Then apply at your nearest Wisconsin Division of Motor Vehicles office.
A copy of your DD214 or DD215 for the WDVA verification, and your normal driver licence or ID documents at the DMV.