Attacking as in a couple of rockets heading US bases which were intercepted. Of course nothing would happen, why would Turkey (or other European countries) join this pointless war?

This is an attack on Turkish territory regardless if there's a US base, and Iranian missiles usually miss the bases anyway.

Turkey is led by a strongman leader and these are very sensitive to acts of public humiliation. So that's unwise when thinking about any negligible strategic advantage they may gain from these attacks