Law enforcement not sufficient to fight terror in Europe

The latest terror attack perpetrated by the Islamic State — this time against the civilians of Barcelona — makes two harsh facts painfully clear. First, the strategy of confronting international terrorism as a global policing problem just isn’t working well enough. Second, the necessary strategic shift toward treating it as more of a military conflict requires European leadership.
Although it will not be easy for Western leaders and peoples to face up to these facts and change,