None of the deals applies to the Islamic State group or al-Qaida's Syria affiliate the Nusra Front
A February 27 truce between the Syrian regime and non-jihadist rebels raised hopes for efforts to resolve the five-year conflict
US troops in Syria are mandated to advise and assist Syrian rebel and anti-Islamic State forces
Russian President Vladimir Putin and his US counterpart Barack Obama meanwhile agreed to help strengthen a fragile ceasefire in Syria
Russian-backed Syrian troops seized the town of Al-Amiriyah on the northern outskirts of Palmyra "after fierce clashes" with ISIS fighters
Assad's Russian-backed government and Western-supported rebels recently concluded a round of peace talks
It said it will not support the breakup of the country and that any new federal model will have to emerge from peace talks
Vladimir Putin hopes withdrawal of Russian troops from Tuesday will be stimulus for political resolution of conflict
Vladimir Putin announced the withdrawal, voicing hope that the move will contribute to the success of Syria peace talks
We will have to see exactly what Russia's intentions are, said spokesman of White House
The jihadists detonated five car bombs during their offensive
World powers have thrown their weight behind the landmark truce as a way to bring an end to Syria's conflict
The ceasefire that began at midnight Friday has brought a notable reduction in hostilities for the first time in the five-year war
This is the first major truce in five years of civil war that have claimed more than 270,000 lives
The Syrian government and a leading opposition bloc have agreed to the cessation of hostilities, beginning today
Hours before the ceasefire, Obama discussed the campaign against ISIS with his top national security advisors
Some local ceasefires have already been agreed, its statement said
Said that Syria's acceptance of the ceasefire includes details that should not be overlooked
The 'cessation of hostilities' however does not include the Islamic State and Al-Nusra Front, the main jihadist factions
Assad yesterday issued a decree which included seat allocations for each of the provinces in Syria