Shahed-136 one-way attack drones, small, rudimentary cruise missiles, continued to pound targets across the Middle East on Monday. The drones have in recent days hit US bases, oil infrastructure and civilian buildings, since the US and Israel air strikes on Iran — a barrage of cruise missiles, drones and precision-guided bombs — began on Saturday.

Tehran has fired more than 1,200 projectiles since the start of this year’s conflict, with many — perhaps most — of them being Shaheds. That suggests they could be saving more damaging ballistic missiles for sustained attacks, Wasser added.