An atheist organization is demanding that no uniformed personnel should be allowed to participate in a Christian organization’s National Day of Prayer event scheduled next week on Capitol Hill, claiming it violates U.S. Department of Defense regulations.

The Military Religious Freedom Foundation, ironically headed by an atheist, Mikey Weinstein, claims that the event excludes non-Christians, and therefore amounts to little more than government-sanctioned Christianity, according to Fox News.

Not true said Family Talk and Focus on the Family founder Dr. James Dobson and his wife, Shirley, during their appearance Thursday on “The Kelly File.”

“We don’t bar anyone from attending our event,” Shirley Dobson told Fox News host Megyn Kelly. “Any faith is welcome to attend.”

James Dobson added that the National Day of Prayer is steeped in American History.

“The truth of the matter is that national days of prayer are an American tradition in history,” he said. “There have been 44 presidents of the United States, and 34 of them have called for national days of prayer, including George Washington and Abraham Lincoln and Ronald Reagan. All but 10 in 200 years.”

Watch the interview via Fox News, then check out “Deputy loses it on retired Marine who was taping her entire meltdown.”