Asia Times:
he US Department of Defense has announced it will send additional troops and possibly the Israeli Iron Dome system to Saudi Arabia and the UAE to reinforce air defenses. While the exact locations for additional air defenses have not been announced, the most likely deployment would be along Saudi Arabia’s northern border facing Iraq and Iran. The US will also install some point defense systems (radars plus guns) around critical oil facilities and military bases.
The Israeli Iron Dome system is the best system for protecting Saudi assets from a similar attack. The US Army bought two Iron Dome batteries from Israel with delivery expected in 2020. Whether Israel could quickly deliver a system to meet the current urgent need is unclear. Right now the US lacks ideal systems to counter cruise missiles and drones.