"Only Russia's military interference made it possible to start the peace process [on Syria]," Kujat said.
According to him, the Syrian crisis was in a state of stagnation because no one had any "strategy for peaceful settlement", and neither the US nor the EU was prepared to conduct large-scale activity.
"It was done by Russia, which threw up a window for a political solution," he pointed out.
Kujat noted the Syrian Army was on the verge of defeat in the run-up to the Russian air campaign, and that the army stood to collapse within "only a few weeks" at the time.
He also said that but for Russia, Syria would have collapsed and Daesh terrorists would have seized power in this Arab country.
Syria has been mired in a civil war since 2011, with government forces loyal to President Bashar Assad fighting opposition factions and extremist groups, such as Daesh and the Al-Nusra Front, which are banned in Russia. As for the Russian air campaign, it was launched on September 30, 2015, following a request from Syrian President Bashar Assad.