(The Washington Post)- Russia’s completion this month of an integrated air defense system in Syria has made an Obama administration decision to strike Syrian government installations from the air even less likely than it has been for years, and has created a substantial obstacle to the Syrian...

Overwhelmed rescue workers combed rubble for victims of intense air strikes on Syria's battleground city Aleppo on Friday, ahead of fresh diplomatic efforts to end the country's intractable conflict. The United States and Russia, which support opposite sides in the five-year war, will meet...

State television threatens the West with nuclear weapons, the Kremlin halts a disarmament treaty, the army warns of shooting down US jets. As ties between Russia and the West have once again slumped, rhetoric in Moscow has peaked. "Relations between Russia and the US, and the West in...

Syrian government forces recaptured territory from insurgents in several western areas on Saturday as the U.N. Security Council prepares to vote on rival French and Russian draft resolutions urging an immediate ceasefire. President Bashar al-Assad's forces, backed by Russian air power and...