"These aids mean change of situation to the detriment of the US and it seems that Damascus has opted for the policy of implementing its agreements with the friendly states to form a serious coalition against terrorism which will have useful outcomes for all countries," Ali Maqsoud told FNA on Monday.

Noting that campaign against terrorism in the Middle-East is not limited merely to Iraq and Syria and all countries should cooperate in this regard to prevent the implementation of the US and Israeli plots in the region, he said Iran and Russia's continued aid and military support for Damascus means that formation of a US-planned government by the ISIL is no more possible.

Maqsoud, meantime, said the terrorist groups might increase their attacks against Syria in the next few days, but underlined that the US and Israeli plots are being defused in the region rapidly, and efforts to uproot terrorism in Syria have started.

In relevant remarks on Sunday, a senior Syrian legislator underlined that his country welcomed Iran and Russia's military assistance in campaign against terrorism, and said the Egyptian government had also voiced readiness to help Syria in the fight against the terrorist groups.

"Syria welcomes Iran and Russia's military partnership in fight against the ISIL in Syria and assumes the efforts made by these countries as legal, distant from the double-standards and in line with safeguarding our national security," Jamal Rabe'eh told FNA.

Also asked about Egypt's U-turn in policies towards Syria and its eagerness to participate in anti-terrorism efforts, he said, "Cairo wants to be coordinated with Syria in the fight against the ISIL which has also sneaked into Egypt and has turned into a real threat to that country's security."

"Egypt also seeks to use the secret intelligence that Syria has gained from the terrorist groups during several years of campaign against these groups, including the ISIL," Rabe'eh said.

The Syrian foreign minister said Thursday that Damascus might ask Moscow to send troops to fight alongside the government forces against terrorist groups in the war-torn country if necessary.

Moreover, Syria's envoy to the United Nations said earlier that Russia had every right to carry out airstrikes against the ISIL on the country's soil.

Kremlin Spokesman Dmitry Peskov said Friday that Russia’s military participation in operations in the fight against the ISIL terrorist group in Syria could be discussed in a bilateral format should such a request surface.

“If there’s a request, then it would naturally be discussed and reviewed in the framework of bilateral contacts and bilateral dialogue. This is so far difficult to discuss hypothetically,” Peskov said.

Also, Iran and Syria have inked several defense cooperation agreements based on which Tehran gives consultations to Damascus in fighting against the terrorist groups.

Syria has been mired in civil war since 2011, with the government of President Bashar Assad fighting against many armed opposition factions, militant and terrorist groups such as ISIL and the al-Nusra Front.