Short-range air defense is making a comeback
By: Brig. Gen. Shachar Shohat (ret.)  
Recent events in the Middle East have led some to wonder how countries, including Israel, can protect their own strategic installations. Israel’s adversaries, such as Hezbollah chief Hassan Nasrallah, have threatened to strike sensitive Israeli targets. Saudi Arabia absorbed a painful strike in September 2019 when an Iranian drone swarm combined with cruise missiles struck oil fields, causing heavy damage.
The attack on Saudi Arabia is the latest tangible example of the evolving threat: precision-guided, sophisticated enemy air attacks.
Each country designates its own strategic sites for special defense. They range from nuclear power plants to air force bases to Olympic stadiums. And the hardening of defenses around strategic sites was especially prominent until around three decades ago.
https://www.defensenews.com/opinion/commentary/2020/09/18/short-range-air-defense-is-making-a-comeback/
