Warplanes pounded ISIS's de facto Syrian capital Raqqa on Tuesday, killing at least 23 people including 13 militants, activists said. The British-based Syrian Observatory for Human Rights said that either Syrian or Russian warplanes are believed to have carried out the strikes. "Thirteen...

Russia's air force has flown 1,631 sorties and struck 2,084 militant targets since the start of its airstrikes campaign in Syria, Russian news agencies cited the defense ministry as saying Tuesday.

Syrian government officials and members of the country's splintered opposition could meet in Moscow next week as Russia pushes to broker a political solution to the crisis, a senior official said on Tuesday. "Next week, we will invite opposition representatives to a consultation...

Britain should not extend its air strikes against Islamic State fighters into Syria until there is a clear strategy to defeat the militants, a committee of British lawmakers said, dealing a blow to Prime Minister David Cameron. Cameron has said he wants to do more to tackle...