ISIL terror attacks are likely in response to its setbacks in Syria and Iraq
ISIL strategy has been to launch offenses elsewhere when its forces are under attack. The current terror attacks are consistent with that strategy, and they are unlikely to stop until ISIL is conquered in its caliphate. Europe would be wise to work with allies in speeding that demise rather than keeping itself on the defensive.
The militants’ leaders are dying in U.S. strikes at the rate of one every three days, and Syrian troops on Thursday entered Palmyra, the historic town snatched by the Islamic State nearly a year ago.