Turkish forces captured the man amid its illegal incursion into Syria this October.
The Islamic State fighter was sent back to the United States after the man was held in limbo at the Turkey-Greece border, Turkish officials announced Friday.
Turkey-supported forces captured Muhammad Darwish Bassam, 39, who is of Jordanian descent, in October during Turkey's military offensive in Syria. Turkey initially sent Bassam to Greece, his country of choice, but Greece denied him entry.
Turkish Interior Minister Suleyman Soylu said Bassam was "stuck" between Turkey and Greece. The United States also initially refused him, but later approved the deportation.
"Upon the commitment of the USA to issue a travel document, necessary procedures have been initiated to send the foreign terrorist fighter to the USA," the Turkish Interior Ministry said.
President Donald Trump has also urged European allies to readmit citizens who left to join the Islamic State. He'd said U.S.-backed forces in Syria held more than 800 foreign Islamic State fighters.
