Have a look at the aerostats used in Afghanistan. Just pour concrete, tether the balloon high enough they can't shoot it. https://www.lockheedmartin.com/en-us/

Have a look at the aerostats used in Afghanistan. Just pour concrete, tether the balloon high enough they can't shoot it. https://www.lockheedmartin.com/en-us/news/features/history/ptds.html https://www.lockheedmartin.com/en-us/news/features/history/p...