The word “veteran” as used in Minnesota Statutes, except in sections 136F.28, 196.21, and 243.251, means a citizen of the United States or a resident alien who has been separated under honorable conditions from any branch of the armed forces of the United States after having served on active duty for 181 consecutive days or by reason of disability incurred while serving on active duty, or who has met the minimum active duty requirement as defined by 38 C.F.R. § 3.12a, or who has active military service certified under section 401, Public Law 95-202. The active military service must be certified by the United States secretary of defense as active military service and a discharge under honorable conditions must be issued by the secretary.