Two Florida men have admitted to conspiring to provide material support to a designated foreign terrorist organization—ISIS, according to a statement from the Department of Justice. Thirty-two-year-old Dayne Antani Christian and Darren Arness Jackson, 51, both U.S. citizens, pleaded guilty to the charges. Both men face a maximum sentence of 20 years in prison on the plea but have not yet had sentencing hearings. Christian, Jackson and another co-defendant, Gregory Hubbard, were arrested by the FBI in July after they drove with an FBI confidential human source to the Miami airport for a flight to Germany, after which they planned to travel to Syria to join ISIS. Hubbard had already purchased a ticket to Berlin. The three men were indicted by a federal grand jury on July 26.