Many see Russia's anti-ship missile sales and increased naval deployment to Syria as intended to deter Western powers from military intervention in the Syrian civil war.
Early rebel optimism in Syria has given way to a grim realization that victory may still be years away. For the past two months, civilians have been fleeing Syria at a rate of 8,000 per day.
The loss of a famous mosque's minaret brought world attention to threats facing Syrian landmarks. But the Umayyad Mosque is just one in a long list of ancient monuments damaged by fighting.
The gruesome video shocked the international community. With concerns about arming the rebels, attention is turning to greater humanitarian aid as a way to help in the increasingly violent war.
There is concern over a Russian missile shipment to the Assad regime, but cautious optimism persists in some Western capitals over a planned international conference on Syria.
Israel says Russia is preparing to deliver anti-aircraft missiles and launchers to the Assad regime, which the US warns will further destabilize a troubled region.
US Secretary of State Kerry and Russia's Foreign Minister Lavrov say they hope to convene an international conference on Syria later in May. The US has also stepped up humanitarian aid.
Rebel forces denied the claims by Carla Del Ponte. The UN commission she leads emphasized today that the investigators had not yet reached conclusive findings.
Israel is straining to arrest a slide toward regional conflict after staging an airstrike on a military facility outside Damascus, reportedly to stop a transfer of weapons to Hezbollah.
The bar is set high, but the US could begin providing body armor, night-vision goggles, rifles, and other basic arms to Syria's rebels.
Homs lies along a key highway that connects Damascus with the coastal city of Latakia, a regime stronghold.
The Syrian prime minister escaped the bombing unharmed, but the attack – in one of Damascus's wealthiest neighborhoods – shows the safe zone for regime members is shrinking.
Last month President Obama called chemical weapons use by Syria a 'game changer,' but why do US interests change if chemical weapons are used?
The churches of two prominent Syrian Orthodox bishops reportedly kidnapped in northern Syria were unable to verify a claim that the pair had been released by their armed rebel captors.
The Israeli military says its evidence shows that the Syrian regime used sarin gas during a March clash with rebels, reversing earlier reports that no such weapons had been used.