How to Fight ISIS

One major problem is that Arab countries are divided on who the main enemy is, making it impossible to focus resources on defeating ISIS. Saudi Arabia is more concerned with Iran and toppling President Bashar al-Assad of Syria; Turkey wants to oust Mr. Assad and put down separatist Kurds; Iraq’s central government is primarily interested in preserving its Shiite-majority rule.

.. Only if America, Russia and other governments agree on a political settlement to end the Syrian war will there be a realistic opening for the warring parties to shift from fighting Mr. Assad to fighting the Islamic State.

.. Banning all refugees, as some in America and Europe are demanding, would be an ineffective and tragic capitulation to fear.