The United States is preparing military action against the Syrian government over its use of chemical weapons.
American forces are ready to launch strikes on Bashar al-Assad's forces - if President Obama gives the order.
The US has made it clear that its response will not include regime change in Syria.
White House spokesperson Jay Carney says Washington does not believe the chemical attack could have been carried out by opposition forces.
France has said that it is ready to strike against the Assad regime. while the British Prime Minister David Cameron says the world cannot stand idly by while governments use chemical weapons on their own citizens.
He is recalling parliament on Thursday to discuss what action will be taken against Syria.
