Selective service

https://washingtonpost.com/outlook/2021/04/14/registering-women-draft-wouldnt-be-big-departure-past/

https://www.ncronline.org/news/politics/feminists-weigh-draft-registration-women

https://hasbrouck.org/draft/women/

https://thehill.com/policy/defense/564423-senate-panel-votes-to-make-women-register-for-draft?

https://historynewsnetwork.org/article/180611

In 1981 SCOTUS ruled that women were not required to register for Selective Service because they were not eligible to server in all branches of the military.

https://en.wikipedia.org/wiki/Rostker_v._Goldberg

https://en.wikipedia.org/wiki/Selective_Service_System