The rebels captured the cities of Hama and Aleppo within a week and even released prisoners from Hama's central prison.
Russian and Syrian warplanes bombed the area near the border with Turkey on Thursday to try to push back an insurgent offensive that has captured territory for the first time in years.
Videos from Syria shows the group Hayat Tahrir al-Sham inside a Syrian regime base of the 46th Regiment.
Damascus says it is waging a war against al Qaeda-inspired terrorists and denies targeting civilians indiscriminately.
Syria's reliance on Captagon smuggling faces new challenges as the ongoing conflict with Hezbollah threatens to undermine critical revenues for the Assad regime
Assad had recently said that he saw Russia’s growing role in the world has helpful to maintain a multi-polar world order.
Syrian leader Assad praised support from Russia and Iran, highlighting strong ties and coordination against Western hegemony and terrorism.
Luna al-Shibl, Syrian President Assad's adviser, died after a suspected deliberate car accident in Damascus, amid political intrigues and military reforms in Syria.
The office said in a statement that Rifaat al-Assad, 86, had been charged with "ordering homicides, acts of torture, cruel treatments and illegal detentions."
Ongoing protests see citizens, including Druze spiritual leaders, calling for democratic reform and a halt to economic degradation