The following is one of the military education benefits for South Dakota.  You can view all the military education benefits for South Dakota here.

South Dakota Tuition for Veterans: Veterans are eligible to take undergraduate courses at a state university without the payment of tuition provided they are not eligible for educational payments under the GI Bill or any other federal educational program. Veterans may receive one month of free tuition for each month of " qualifying service" with a minimum of one, up to a maximum of four, academic years. Qualifying service is defined as: the amount of time served on active duty between the beginning and ending dates of the particular period of conflict or hostilities during which the veteran earned eligibility for this program. Since all of the post-Vietnam conflicts have been very short in duration, the majority of veterans who qualify will be entitled to only the minimum, one academic year, of free tuition. Under the free tuition program, the veteran has twenty (20) years from the ending date of the specific period of service during which he or she served and met the eligibility criteria, or, twenty (20) years after the date that he or she was rated 10%, or more, disabled by the DVA.

Eligibility: Veteran must be discharged under Honorable conditions and a current resident of South Dakota and qualify for in-state tuition, and able to meet one of the following criteria: Served on active duty at any time between August 2, 1990 and March 3, 1991. Received an Armed Forces Expeditionary medal, Southwest Asia Service medal, or other United States campaign or service medal for participation in combat operations against hostile forces outside the boundaries of the United States or have a service connected disability rated 10%, or more, disabling.