President Trump shook up the lives of thousands of those enlisted in the US military today when he tweeted out his decision about transgender people serving in the military. It is unclear if the news means no new enlistments, or if those in the service now will be discharged. Some, though, aren’t accepting Trump’s decision. One is a former SEAL.

“After consultation with my Generals and military experts, please be advised that the United States Government will not accept or allow … Transgender individuals to serve in any capacity in the U.S. Military. Our military must be focused on decisive and overwhelming … victory and cannot be burdened with the tremendous medical costs and disruption that transgender in the military would entail. Thank you.”

Kristin Beck deployed 13 times in 20 years. Seven of those were combat deployments. Before her transition, Beck was awarded a Purple Heart and the Bronze Star.

“Let’s meet face to face and you tell me I’m not worthy,” Kristin Beck told Business Insider on Wednesday. Beck is a 20-year veteran of the Navy SEALs. “Transgender doesn’t matter. Do your service.”

Business Insider and others are quoting a Rand survey that estimates the numbers of transgender people serving in the U.S. military at between 1,320 and 6,630.

“Being transgender doesn’t affect anyone else,” Beck said. “We are liberty’s light. If you can’t defend that for everyone that’s an American citizen, that’s not right.”

“I was defending individual liberty,” she said. “I defended for Republicans. I defended for Democrats. I defended for everyone.”

Trump’s argument about the presence of transgender soldiers is based on the relative medical expenses. Beck isn’t buying that, either. “The money is negligible,” Beck said. “You’re talking about .000001% of the military budget.”

“They care more about the airplane or the tank than they care about people,” Beck added. “They don’t care about people. They don’t care about human beings.”

The more pervasive argument, Beck feels, is the prejudice people have about transgender soldiers fitting in with their units. This is the same argument that was raised when African Americans were first integrated, and, more recently, with women.

“A very professional unit with great leadership wouldn’t have a problem,” Beck said. “I can have a Muslim serving right beside Jerry Falwell, and we’re not going to have a problem. It’s a leadership issue, not a transgender issue.”

As of now, The President has not answered Beck’s challenge.