Sourced : Yeni Safak
The first phase is the shipping of the two S-4oo missiles from Russia to Turkey. One system will be deployed in Turkey’s east against possible threats from Syria and Iran, and the other in the west against a Greek threat. The new S-400s will be manufactured in Turkey.
Turkey put forward a bilateral model due to balance policies in its requirement for a long-range air defense system. The partnership agreement was signed with NATO members France and Italy in order to meet the requirement which costs billions of dollars with domestic manufacture.
Read more at : http://www.yenisafak.com/en/ekonomi/s-400s-to-be-stationed-in-turkeys-east-and-west-2764283