10 U.S.C. § 3915
Section, acts Aug. 10, 1956, ch. 1041, 70A Stat. 225; , Pub. L. 85–155, title I, § 101(19), 71 Stat. 379; , Pub. L. 89–609, § 1(5), 80 Stat. 852; , Pub. L. 89–718, § 3, 80 Stat. 1115, provided for retirement after 25 years’ service of regular majors in Women’s Army Corps, Army Nurse Corps, and Army Medical Specialist Corps.