I think you may be confused. Iraqi soldiers surrendered to drones in 1991 during the first Iraq war. The drones were targeting them for the 16 inch guns on US battleships off shore (the biggest cannons in the world) and the effect of the shells landing was so horrific that the Iraqis surrendered to the drones.
helicopter gunships or anti-aircraft guns can be used to take down these things, i believe one of those was shot down by pak once a few years ago. we dont necessarily need fighter jets