From overflight requests and grainy photos of fighter jets to social-media posts showing Russian marines in Syria, there are mounting signs that Moscow may be ramping up its military presence in the war-torn Middle East nation.
As Western governments struggle to grasp the extent of Russia's involvement in the Syrian civil war, a more pertinent question is sometimes obscured: What does Russia want?
13:58 Gunman in Ukraine kills Putin foe in attack denounced as ‘state terrorism’26
09:49 Russia criticizes US-led coalition over bombing of Syria dam13
00:38 Manafort is gone, but his business associate remains a key part of Trump’s operation14
16:23 Tillerson’s next challenge: Reassuring senators on Russia over lunch20