An atheist group is demanding that the military retreat from partaking in the National Day of Prayer.

Military Religious Freedom Foundation President Mikey Weinstein wrote a letter to Defense Secretary Chuck Hagel, urging the Defense Department to withdraw support from the National Day of Prayer, to be held on May 1. He claims that the event violates a number of DOD regulations.

The annual event has been celebrated since Harry Truman signed a proclamation in 1952. Ronald Reagan designated National Day of Prayer the first Thursday in May, and it is a bipartisan event that has been held on Capitol Hill for 31 years now.

John Bornschein, vice chairman of the National Day of Prayer Task Force, was on “Fox and Friends” to discuss the situation.

“These men and women have been putting themselves in harm’s way and they need prayer and it’s an honor for us to be able to stand alongside them and pray for them,” Bornschein said. “There are no DOD violations in this event.”

Watch the full interview above

Atheists Challenging Plans to Include Cross-Shaped Beam in Ground Zero Museum

Family Takes Down Roadside Memorial Cross After Atheists Call for Its Removal

Pew Study: Gov’t Restrictions on Religion Increased 87.5% From 2009-2012