While the US missile assault on Syria will make Putin and Assad pause for thought, one of the consequences of the attack may be a boost for Islamic State, writes Leonid Bershidsky.

The US missile attack caused heavy damage to one of Syria's biggest and most strategic air bases - but the impact on President Bashar Assad's military capabilities is limited.

The United States has warned it is "prepared to do more" to stop the horrors that are taking place in Syria under Bashar Assad.