Drones have changed war. If you're not parking your million dollar airplanes inside hard shelters, you will look the fool when someone blows up your plane with thousand dollar toys dropping glorified hand grenades.

Putin learned this when he lost half of his plane-based nuke delivery system.

Trump learned this for himself in Iraq and Jordan.

I expect billionaires will learn this soon at their executive airports.

https://www.jpost.com/middle-east/iran-news/article-911035