Last year, under the pretext of fighting against terrorism, the United States and its allies militarily intervened in Syria without the approval of the legitimate government of Bashar al-Assad and without receiving an appropriate UN mandate.
Meanwhile Russia started its airstrike campaign against ISIL targets in Syria at the request of President al-Assad.
"We believe that our Russian friends are sincere in their words and actions, the legitimacy of which is justified by international humanitarian law and a UN Charter," Mekdad stated during the interview.
Russian airstrikes in Syria have significantly reduced ISIL's combat potential, their mobility as well as the terrorists' ability to attack, he said.
Russia has sent a draft document to the United States on the measures aimed to avert air incidents between the Russian Aerospace Forces and US-led anti-ISIL coalition over Syria, the Defense Ministry's spokesman said, adding that Moscow is awaiting official notification from Washington on the date of next consultations.