UK PM David Cameron urges strikes on ISIS in Syria

London British Prime Minister David Cameron has become the latest world leader to call for an escalation in the fight against ISIS, as French President Francois Hollande continues a whirlwind week of diplomacy to build an international coalition against the terror group.Cameron, who met with the French leader in Paris Monday, made the case in the British Parliament on Thursday for airstrikes against ISIS in Syria, arguing that an expansion of military action is needed to counter "the very direct threat that (ISIS) poses to our country and our way of life."They are the latest in Hollande's busy schedule of meetings with other world leaders this week - including Cameron, German Chancellor Angela Merkel and U.S. President Barack Obama - as he attempts to build a broad global coalition against the Sunni extremist group, which claims to have established an Islamic caliphate over large swaths of Iraq and Syria.