Attacks by Hezbollah and Iran showed a degree of Israeli vulnerability. What now?

With Israel expected to retaliate, it is not surprising US has announced it will deploy Thaad missile defence systems

As Israel's conflict with Hezbollah and Iran has escalated, it has begun to show a degree of vulnerability. A Hezbollah drone evaded Israel's much vaunted air defences on Sunday and struck a military canteen when it was busy with soldiers eating dinner. Four were killed and 58 wounded, seven seriously, at a location 40 miles south of the Lebanese border.

The drone that hit the canteen of the Golani base near Binyamina appears to have been part of a synchronised attack that allowed it to elude the country's well organised air defences. Three drones flew from Lebanon over the Mediterranean, and though they were all initially spotted, and two shot down, the other was able to reach its target.