As silly as this sounds, it's actually true to a large extent. Pols and partisans in the EU do a lot of shouting (so do ours), but behind the scenes our law enforcement people seem to be communicating pretty well. You regularly read about how we caught some dirt-bag because of a tip from the Germans, and stuff like that.
Yes they cooperate in that sense but if they banded together in a way much like WWll and joind forces side by side the islamopignazis would be almost extinct by now. Not because of their military contribuiton so much as their tacit approval of war tactics allowing us perhaps to take the gloves off. Instead they stand on the sidelines and snipe like the socialist pantywaists that they are.