Obama has steadily been moving back to a military, which the U.S. designed, to provide shock troops for an occupying army of local forces. He turned to Kurdish forces who were not bound to either Sunni Arabs or Iranian Shia to act in that role. It is a long term strategy because it takes time to train and introduce new weapons to the Kurds. Even so, the combination has taken back a good quarter of the land that ISIS has taken and its leadership is suffering a steady attrition from U.S. air attacks. ISIS is desperate to revert to the good old days, in Iraq, when it could fight a guerrilla war against an foreign occupation army. A war of terror and witting or unwitting complicity of the Republican Party may very well allow them to once more know happier times. Another land war for the U.S. is the best thing that could happen to both ISIS and the Republican Party. The Republicans get more trillions of tax payer dollars for their constituents and the old Iraqi Army generals get to use their IED's to maim and kill American G.I.s and pick up more American equipment, hopefully newer models, for themselves.