Belgium has been grappling with terrorism seriously since last year, but the U.S. has been doing this for fifteen years and has few resource constraints.
Why We’re Not Brussels
Third Way

Wouldn’t it make sense for the EU to form a joint counterterrorism force? The nations of Europe could act in a similar fashion to the individual states of the US, sharing intelligence and being coordinated by a central authority. That way, resources and intelligence could be pooled effectively. It seems that Europe must focus on the external borders rather than the internal, given that all European states share the same fundamental liberal values, and therefore have the same incentive to combat terrorism.