A nighttime convoy of buses carried dozens of Kurdish Peshmerga fighters on Tuesday (December 2) through Sanliurfa, Turkey to the Syrian border.
They were being deployed to the Syrian town of Kobani to battle Islamic State militants.
The troops had arrived earlier at the airport in Sanliurfa from northern Iraq.
They'll replace another Peshmerga unit that has been in Kobani since October 29.
The fresh troops were escorted by police as they were driven to the border.
The Anatolian news agency reported they had crossed into Kobani late at night.
Kurdish militia have been holding off Islamic State fighters for more than two months in Kobani, known as Ayn al-Arab in Arabic.