Drones can give us access to information of what the battlefield looks like so that you can evade or attack an enemy. Buying drones will prove useful for any prepper; because you can prepare for social unrest or prepare for WW3 if America is invaded(if your willing to fight drones will prove useful). Don’t buy those baby drones they won’t be useful they have to have a camera on them and can reach at least 500 feet. Never stay for to long because the drone can be spotted and shot down. Never use your drone in a place with a lot of heat because hi tech surveillance can track that drone and shoot it down. For the drone to be useful you must have a solar generator for use off the grid to charge your drones and other electronics. It is also recommended that you have faraday cages to store your drone and other electronics with usb solar chargers to store them in just in case of an emp attack. You should also make a faraday cage to protect your solar generator from emp attacks.