Turkish military personnel who were aboard a Blackhawk military helicopter are transferred to a prosecutor's office in the city of Alexandroupolis, northern Greece, Sunday July 17, 2016.

Mass Detentions, Political Crackdown In Turkey After Failed Coup

Some 6,000 members of the military have been detained in relation to the coup attempt, including the commander of the Incirlik Air Base, where US troops and a substantial number of US nuclear arms are stationed.