good luck telling him that.The first and the biggest problem is to
Detect the drones by Ground Radars
Drones are becoming dangerous because of Low RCS
Try telling that to armenia who got hammered by the drones. We dont even need anti air guns or flak cannons they are too expensive compared to this. This weapon can target satellites and bring them down. Only thing is you need to be alive to fire it.One word : WW2 anti air guns and flak cannons. Simple, cheap, plentiful.