Why Is There an ISIL?

In June 2014,the self-proclaimed Islamic State of Iraq and the Levant (ISIL)1——an extremist organization——suddenly appeared in Mosul in Northern Iraq.Since then it has rapidly expanded its sphere of influence,to incorporate much of northern and western Iraq.Strategists,both in China and overseas,are puzzling over this Islamic State.Some scholars argue that the west Asian political landscape that was carved out 100 years ago is collapsing.ISIL's influence is spreading throughout the Middle East and threatening global security.