Russia to keep advanced air defence systems S-400 in Syria: Kremlin

MOSCOW:  Russia will use advanced air defense systems to protect its remaining contingent in Syria after some of its forces are pulled out, a senior Kremlin official said today.

"We will keep a fully reliable cover of the remaining contingent," said Kremlin chief of staff Sergei Ivanov. "To effectively ensure security, including from the air, the most modern air defence technology is necessary," he was quoted by Russian agencies as saying.

Source are Saying that Kremlin Wanted make sure there is Space Violation should not take place Between Syria boarder also kremlin will watch Turkey's interest.