al nusra front

Russia announced the move, as the U.S. has been sidelined in recent negotiations.
The U.S. intervention in the Syrian Civil War was prompted by the battlefield successes of the Islamic State (IS) and the
On July 2, 2016 al-Qaeda-aligned al-Nusra Front fighters invaded the headquarters of Jaish al-Tahrir, a US-backed opposition
On May 7, Ayman al-Zawahiri, the head of al-Qaeda, released an audio recording in which he announced that he had given his permission for the al-Qaeda affiliated Syrian jihadist group, al-Nusra Front, to create "a new emirate" in Syria.
The ceasefire had specifically excluded ongoing military operations against Islamic State (IS) militants and the al-Qaeda
Simply put, terrorism is an ideology and a tactic. Declaring War on Terrorism is as silly as proclaiming war on kamikazes during World War II.
Friday's agreement did nothing to halt Russian bombing for at least another week, allowing government forces to press on with their offensive.