After 2000, there was a closeness in the relations of Syrian and Turkey. However, Turkey and Syria were in dispute about water, Hatay and terrorism. Especially there was an intense tension over terrorism. This tension brought the two countries to the brink of war in 1998. We can say that the relations between Syria and Turkey normalized after Adana Agreement in 1998. When Bashar Al-Assad came to power in Syria and as did AKP in Turkey, the relations improved even further leading to the abolishment of visas in 2009. However, with the Arab Spring, the relations turned sour and reached to a point that can’t be normalized anymore. This book analyses the relations between Syria and Turkey between 1998 and 2018.