Massive U.S. airstrikes on Islamic State militants in Syria were meant in part as a message to the group and a move to ensure that it doesn't try to take advantage of the chaos following the overthrow of President Bashar Assad's government.
The U.S. and its partners want to make sure the Islamic State group, which still has a presence in Syria, can't step into the leadership void and once again exert control over wide swaths of the country, Pentagon spokeswoman Sabrina Singh said Monday. The U.S. on Sunday struck about 75 IS targets in the Syrian desert.
