In a plurality opinion, the United States Supreme Court has held that classifications based on sex violate due process guarantees where female, and not male, members of the armed services are required to prove dependency of their spouses as a condition for receiving benefits.
Frontiero v. Richardson, 411 U.S. 677 (1973).
Janice M. Holder,
Constitutional Law - Fifth Amendment Due Process - Sex Discrimination - Suspect Classification,
Duq. L. Rev.
Available at: https://dsc.duq.edu/dlr/vol12/iss4/13