Guided-missile cruiser USS Philippine Sea launches a Tomahawk cruise missile at Islamic State positions in Syria as seen from the aircraft carrier USS George H.W. Bush in the Arabian Gulf, Sept 23, 2014. Syria said Washington had informed President Bashar Assad's government of imminent US airstrikes against Islamic State, hours before an American-led military coalition pounded the extremists' strongholds across northern and eastern Syria. [Photo/IC]


Related: Obama urges further coalition efforts against IS