Between these two ends of the political spectrum, it would be safer for the United States to commit to a possible phase-out, depending on a negotiated agreement that would protect the millions of civilians living under SDF control from a violent organization at large for all, which could exploit the elements of IS. The preservation of the northeast as an integral part of the Syrian state is necessary to ensure a sustainable solution. However, an agreement between the YPG and Damascus cannot be reached in the foreseeable future. Even if they reach one, it is not enough to avoid a violent fight after the withdrawal for control of the territory and resources. There is a considerable gap between the minimum that the YPG is willing to accept as much as Damascus is willing to admit. Moreover, Damascus seems to believe that time is on its side, because of its military gains elsewhere and the expectation that the United States will not withdraw its troops too much at some point. The concentration of diplomatic efforts on immediate tactical details, while avoiding key differences over the end of the final, may not address Turkey`s concerns and could encourage Ankara to make such tactical concessions without lowering its own demands or giving up military options. Instead, the United States should cooperate with Ankara and the SDF to define a bearable end to the game for both sides, and then attempt to reach agreements on tactical measures in that direction. In particular, the YPG could reduce control over governance, resources and security in northeastern Syria and allow Arab and Kurdish opposition forces to participate meaningfully in local government and civil society organizations. „This agreement on the creation of observation posts is just an advertisement and nothing will change. This will only lower the intensity of tensions on this front, but will not end them in the long term, because the SDF has violated the ceasefire agreement by digging tunnels that have been destroyed by Turkey and Ankara-backed groups,“ he told Arab News. In an interview in March 2017, Zaynab Jamil Kanbar, co-head of the Manbij board of directors, founded on 12 March, said there was no Syrian government presence in the city of Manbij and that the Council had „refused any cooperation with the regime“.
However, the Syrian army and Russian forces agreed in February with the Manbij Military Council to hand over several villages west of Manbij during the East Aleppo offensive (January to March 2017).  For its part, Turkey should consider abandoning its veto on the inclusion of SDF in the UN-led political process on Syria. The ability of the SDF to participate could promote the UN`s priority over Syria and help strengthen their commitment to the settlement of the North-East`s status through a multilateral national agreement that preserves Syria`s territorial integrity. Ankara should also respond to the ownership and security problems of indigenous peoples in the territories it has confiscated from the YPG by abandoning the armed groups supported there and allow the return of those displaced as a result of its military operations. On 4 April, pro-government NDF forces fired on an Asaian police vehicle, killing an officer in Asayish.  On 21 April, further clashes broke out in the Al-Qamishli district between the pro-government national defence power and the paramilitary forces of Asayish, near Rojava, which led to a Russian intervention to end hostilities. The Syrian Communist Party welcomed the agreement  Nevertheless, it remains difficult to imagine that Ankara would have an interest in concluding tactical agreements with the SDF aimed at avoiding an escalation with its long-standing enemy, without a clear end to the game that would prevent the northeast from becoming a PKK-led or state-