Here are some lessons on fighting drones
The sound of drones sent men into a panic. If they heard them, they’d hit the ground, or crawl under a humvee. The drones weren’t only dropping grenades, this one had an unknown white powder as its payload, “don’t go near that” Major Salam warned me. it lay outside for weeks.
And there wasn’t much they could do to stop the drones. Jamming rifles made an appearance but they weren’t terribly effective. The drones kept coming. Iraqi forces even began to improvise their own killer drones, with shuttle-cock ordinance.
Iraq discovered that the best way to counteract the threat from drones - be it surveillance, attacks, or intereference - is simple: Kill the drone operator.