Syrian regime leader Bashar al Assad on Monday called US-backed groups "traitors", ramping up the criticism against Syrian Democratic Forces (SDF) controlling more than a quarter of the country.
The elections and constitution in Syria are expected to be discussed in the upcoming talks in the Russian city of Sochi earlier next year. He added the Syrian government also welcomes the UN's and the global community's efforts to bring peace to Syria - as long as Syrian sovereignty is respected.
The president said any role of the United Nations in Syrian elections must be based on the United Nations charters and respect the Syrian sovereignty.
Assad said if there is a constitutional amendment, there will be elections based on the constitution.
Assad's government has been backed by Russian Federation and Iran.
Last month, leaders of Iran, Turkey and Russian Federation met in Sochi to lay the foundation of a peaceful resolution to Syria's long-standing conflict.
The continuous victories achieved in the fight against terrorism (the government's term for armed rebel groups) in Syria provide the necessary conditions for accelerating the reconstruction of many areas of the country, said Assad, state-run news agency Sana reported.
"President Assad said today that Syria has no desire to work with companies from countries which betrayed Syria at a certain moment", Rogozin said.
He added that the aim of the world's focus on IS is to divert the attention from the terrorism that still exists in Syria under the support of the West. "All those who work for a foreign country, mainly those under American command. are traitors", Assad said in a thinly veiled reference to the YPG, which dominates SDF.
Despite Turkey's numerous warnings about the risks of cooperating with a terrorist group, the US still continues to collaborate with the militants of PKK's Syrian wing, a group recognized as a terrorist organization by the USA itself, Turkey, the European Union, and many other countries.