Air strikes alone won't defeat Islamic State, Kerry warns

By Arshad Mohammed BELGRADE (Reuters) - Syrian and other Arab ground forces must be found to take on Islamic State, U.S. Secretary of State John Kerry said on Thursday, saying the militant group would not be defeated by air strikes alone. Kerry was speaking hours after Britain began bombing Islamic State targets in Syria, joining forces with France and the United States, nearly three weeks after the jihadist group killed 130 people in attacks across Paris. British Prime Minister David Cameron sa