Syria's president was full of praise during a visit by a delegation of Russian politicians.
The Chechen leader said he had been invited twice but didn’t have time.
The program aims to avoid mistakes that doomed its first training effort in Turkey last year.
"If necessary, literally within a few hours, Russia can build up its contingent in the region to a size proportionate to the situation developing there," Putin said.
George and Amal Clooney meet with Syrian refugee families for the International Rescue Committee, plus videos from UNICEF, the Holocaust Museum and more.
The "cessation of hostilities" agreed to by the United States and Russia is due to take hold on Saturday morning.
Iran and Russia have never claimed ignorance of the criminality they facilitate.
Tens of thousands of people are being held in government custody, according to the U.N.
The Syrian conflict has killed more than 200,000 people and will enter its sixth year in March.
The message from Putin was relayed by the head of Russia’s GRU military intelligence agency.
The rebels want all sides in Syria's civil war to allow humanitarian access to those in need and cease attacks on civilians.