Two HIV-positive airmen who are being kicked out of the Air Force under the Pentagon’s new “deploy or get out” policy have filed a lawsuit to stop their discharges.

The Air Force ruled the airmen’s HIV status means they can’t deploy around the world without a waiver, and must be discharged, according to the lawsuit filed Wednesday in the U.S. District Court for the Eastern District of Virginia.

The airmen argue that these policies are discriminatory, unconstitutional and — because they don’t reflect how far HIV treatments have advanced in recent years — anachronistic.

The airmen, a staff sergeant who enlisted in 2012 and a senior airman who enlisted in 2011, adhere to a treatment regimen that has left them without any HIV symptoms and with an undetectable viral load that cannot be transmitted, according to the lawsuit.

“At best, DoD and Air Force policies singling out service members living with HIV for starkly different treatment are an unfortunate vestige of a time when HIV was untreatable and invariably fatal,” the suit states. “These anachronistic policies are no longer justified in light of modern medical science. … They currently constitute outright discrimination.”

The airmen were told their appeals were denied a few days before Thanksgiving, even though they passed their fitness assessments, were being medically treated, and had the support of their commanding officers, according to a news release from the organizations Lambda Legal and OutServe-SLDN, which represent the pseudonymously-identified airmen. The lawsuit names Defense Secretary Jim Mattis, Air Force Secretary Heather Wilson and the Defense Department as defendants.

“It’s disgusting that the Trump administration is sending some men and women in uniform home for the holidays without jobs simply because of their HIV status,” Scott Schoettes, counsel and HIV project director for Lambda Legal. “These decisions should be based on science, not stigma.”

Air Force spokeswoman Capt. Carrie Volpe said the service would not comment on the litigation. Typically, however, airmen with chronic or progressive illnesses are referred to the disability evaluation system for a medical evaluation to determine whether they are fit to continue serving. That evaluation decides, on a case-by-case basis, whether the airman can reasonably do his job, whether the condition represents a decided medical risk to the health of that airman or the welfare and safety of other service members, and whether it imposes unreasonable requirements on the military to maintain or protect him.