Fine, let them stay there...Why should it be Europe’s problem?
It’s Europes problem because they swung the doors wide open as we see.....however Putins back in the game and talking with leaders about establishing a united front against ISIS and terrorist...we may very well see Damascus flattened....if Assad doesn’t co-operate....and Putin may be just the one with Turkey who will pull it off...why do you think Putins building Military bases there(in Syria) NOW and just a minor hint of objection by leaders....they can’t make it look like this is a go.