Saudi F-15 shoots down a Iranian backed Houthi drone between the Yemen/Saudi border. These drones attack the oil ports and refineries on a daily basis sometimes causing massive damage and casualties.
Imagine thousands of these types of drones attacking a fixed position at once. This is the future of warfare in the 21st Century.
I highly recommend the novel Ghost Fleet if you have not read it. It’s a entertaining but realistic (and prophetic) snapshot of warfare in the 21st Century.