Russia's Izvestia reported that Moscow will send more Su-24 and Su-34 warplanes to join the campaign, which began a year ago.
The powerful Islamist Nusra Front is ideologically opposed to the more moderate Syrian rebels and their Western supporters, but occasionally fights alongside them against the Islamic State.
The Royal Canadian Mounted Police has accused him of traveling to Turkey in 2014 to join Jabhat al Nusra, a branch of al Qaeda located in Syria.
"People won't leave their houses because they are afraid of snipers."
In this extra scene from 'Families on the Front Line,' VICE News filmmaker Medyan Dairieh interviews an al-Nusra fighter who explains how his faith comes before his family and describes what it is like to leave his children for battle.
Syria's military confirmed that a plane had been shot down and said it was hit by a surface-to-air missile. The pilot of the Su-22 bomber jet may have survived.
Following a two-year investigation, the RCMP anti-terror unit is accusing 23-year-old Kevin Omar Mohamed, of traveling to Turkey in April 2014 to join jihadist group Jabhat al Nusra, the Syrian branch of al Qaeda.
For the past five years, VICE News journalists have been on the ground in Syria documenting the rebel struggle, civilian suffering, and the rise of the Islamic State.
Rami Jarrah, also known by his alias, Alexander Page, says Russian and Syrian airstrikes are targeting residential areas, not just areas controlled by rebels or ISIS.
Taught that dying in jihad will make them martyrs, children here will likely join the tens of thousands of child soldiers being used and abused in conflicts around the world.
In this excerpt, VICE News filmmaker Medyan Dairieh follows al Nusra fighters as they launch assaults on the Abu al-Duhur airport, while dodging sniper fire, mines, and President Assad's warplanes.