They have seen the Huns and Genghis Khan with his Mongolian horde, Soviets and Nazis, and stopped the Ottomans cold in Vienna under Jan Sobieski and his Polish, German, Hungarian, etc. army. I think the Greeks alone could handle this with the will to stop them. And Italy should try to remember when the Romans stopped Hannibal and his elephants and Phoenician invaders.
Yes, but that was then, and this is now.