Several active and retired gay military service members are suing the federal government to receive the same marriage benefits as straight couples.
Under the federal Defense of Marriage Act, the Pentagon is not allowed to recognize same-sex marriages, something the litigants argue violates their constitutional rights.
The Servicemembers Legal Defense Network is representing the eight plaintiffs in Thursday's suit.
"It's about justice for gay and lesbian service members and their families in our armed forces rendering the same military service, making the same sacrifices, and taking the same risks to keep our nation secure at home and abroad," Aubrey Sarvis, executive director of the Servicemembers Legal Defense Network, said in a news release.
Sarvis added that DOMA also poses a "threat to national security."
Elaine Donnelly, president of the Center for Military Readiness, disagreed, saying the case is nothing more than an "attempt to impose a minority view on the majority."
A spokesperson from the Pentagon says they are evaluating the complaint and consulting with The Justice Department on the matter.