In 2019, the agreement took on new importance due to contemporary Turkish operations on Syrian territory.   The agreement was explicitly mentioned in the agreement on the second buffer zone in northern Syria. Russia, Turkey and Iran have agreed to find a solution to problems in northern Syria on the basis of the 1998 Adana agreement, Russian Foreign Minister Sergey Lavrov said on Tuesday. Initially, Syria rejected the Turkish demands, but decided, after important negotiations, to partially accept the end of the PKK`s presence in Syria. Before the deal, the Syrian government caused Öcalan to leave the country instead of handing him over to the Turkish authorities, as Turkey is demanding.  Instead, he was put on a plane going to Moscow.   For most of 1998, tensions between Syria and Turkey appeared to be easing under a deliberate policy of the new Turkish government, which took office in mid-1997. For the first time in years, the two sides even exchanged relatively high-level diplomatic visits. The atmosphere was recharged, however, when Turkish Prime Minister Mesut Yilmaz visited Jordan and Israel late last summer. The trip symbolized Damascus` nightmare of an anti-Syrian alliance between its neighbors, with an Arab-Jordanian component, and sparked strong protests in the Syrian press. Yilmaz responded in the same way, and a war of words ensued. Apparently on the brink of hostilities with Turkey in mid-October 1998, Syrian President Hafez Assad did what almost no one expected to see.
He withdrew, and quickly. Assad has promised to satisfy most, but not all, of Turkey`s demands that he end support for the Turkish-Kurdish separatist group, known as the Kurdistan Workers` Party (PKK with its Kurdish acronym), and accept some form of surveillance to ensure it does. As a remarkable first step, Assad was pkk leader Abdullah Öcalan, who had long made Damascus his operational base, but whose presence in the country had always been denied by Syria. The provisions of the agreement give Turkey a legal path to act in Syria with Russia`s full agreement. He added that Ankara could use the Adana agreement to legally justify Turkish operations in Syria, with Syria being required under the 1998 agreement to prevent Kurdish fighters from using its territory as a theater of attacks in Turkey. . . .